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Finding the Fourth Proportional to 156,404.52, 215,762.13 and 92,697.21

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Solution

The fourth proportional to 156,404.52, 215,762.13 and 92,697.21 is: 127,877.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,404.52 : 215,762.13 = 92,697.21 : x
  2. Step 2: Convert to fraction form
    156,404.52/215,762.13 = 92,697.21/x
  3. Step 3: Cross multiply
    156,404.52x = 215,762.13 × 92,697.21
  4. Step 4: Simplify right side
    156,404.52x = 20,000,547,474.66
  5. Step 5: Solve for x
    x = 20,000,547,474.66/156,404.52
  6. Step 6: Final answer
    x = 127,877.04

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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.