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Finding the Fourth Proportional to 85,092.50, 127,697.08 and 29,688.50

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Solution

The fourth proportional to 85,092.50, 127,697.08 and 29,688.50 is: 44,553.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,092.50 : 127,697.08 = 29,688.50 : x
  2. Step 2: Convert to fraction form
    85,092.50/127,697.08 = 29,688.50/x
  3. Step 3: Cross multiply
    85,092.50x = 127,697.08 × 29,688.50
  4. Step 4: Simplify right side
    85,092.50x = 3,791,134,759.58
  5. Step 5: Solve for x
    x = 3,791,134,759.58/85,092.50
  6. Step 6: Final answer
    x = 44,553.10

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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.