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Finding the Fourth Proportional to 85,061,874,859.60, 127,592,812,289.40 and 85,061,874,859.60

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Solution

The fourth proportional to 85,061,874,859.60, 127,592,812,289.40 and 85,061,874,859.60 is: 127,592,812,289.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,061,874,859.60 : 127,592,812,289.40 = 85,061,874,859.60 : x
  2. Step 2: Convert to fraction form
    85,061,874,859.60/127,592,812,289.40 = 85,061,874,859.60/x
  3. Step 3: Cross multiply
    85,061,874,859.60x = 127,592,812,289.40 × 85,061,874,859.60
  4. Step 4: Simplify right side
    85,061,874,859.60x = 10,853,283,831,945,376,038,912
  5. Step 5: Solve for x
    x = 10,853,283,831,945,376,038,912/85,061,874,859.60
  6. Step 6: Final answer
    x = 127,592,812,289.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.