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Finding the Fourth Proportional to 57,947,715.60, 81,246,241.20 and 57,947,715.60

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Solution

The fourth proportional to 57,947,715.60, 81,246,241.20 and 57,947,715.60 is: 81,246,241.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,947,715.60 : 81,246,241.20 = 57,947,715.60 : x
  2. Step 2: Convert to fraction form
    57,947,715.60/81,246,241.20 = 57,947,715.60/x
  3. Step 3: Cross multiply
    57,947,715.60x = 81,246,241.20 × 57,947,715.60
  4. Step 4: Simplify right side
    57,947,715.60x = 4,708,034,078,626,603
  5. Step 5: Solve for x
    x = 4,708,034,078,626,603/57,947,715.60
  6. Step 6: Final answer
    x = 81,246,241.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.