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Finding the Fourth Proportional to 85,196,114.70, 127,794,172.05 and 85,196,114.70

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Solution

The fourth proportional to 85,196,114.70, 127,794,172.05 and 85,196,114.70 is: 127,794,172.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,196,114.70 : 127,794,172.05 = 85,196,114.70 : x
  2. Step 2: Convert to fraction form
    85,196,114.70/127,794,172.05 = 85,196,114.70/x
  3. Step 3: Cross multiply
    85,196,114.70x = 127,794,172.05 × 85,196,114.70
  4. Step 4: Simplify right side
    85,196,114.70x = 10,887,566,939,963,334
  5. Step 5: Solve for x
    x = 10,887,566,939,963,334/85,196,114.70
  6. Step 6: Final answer
    x = 127,794,172.05

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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.