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Finding the Fourth Proportional to 85,575, 118,096.20 and 47,849.16

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Solution

The fourth proportional to 85,575, 118,096.20 and 47,849.16 is: 66,033.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,575 : 118,096.20 = 47,849.16 : x
  2. Step 2: Convert to fraction form
    85,575/118,096.20 = 47,849.16/x
  3. Step 3: Cross multiply
    85,575x = 118,096.20 × 47,849.16
  4. Step 4: Simplify right side
    85,575x = 5,650,803,969.19
  5. Step 5: Solve for x
    x = 5,650,803,969.19/85,575
  6. Step 6: Final answer
    x = 66,033.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.