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Finding the Fourth Proportional to 83,411,688.60, 125,117,532.90 and 83,411,688.60

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Solution

The fourth proportional to 83,411,688.60, 125,117,532.90 and 83,411,688.60 is: 125,117,532.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,411,688.60 : 125,117,532.90 = 83,411,688.60 : x
  2. Step 2: Convert to fraction form
    83,411,688.60/125,117,532.90 = 83,411,688.60/x
  3. Step 3: Cross multiply
    83,411,688.60x = 125,117,532.90 × 83,411,688.60
  4. Step 4: Simplify right side
    83,411,688.60x = 10,436,264,692,655,054
  5. Step 5: Solve for x
    x = 10,436,264,692,655,054/83,411,688.60
  6. Step 6: Final answer
    x = 125,117,532.90

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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.