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Finding the Fourth Proportional to 156,407.33, 215,766.01 and 92,700.02

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Solution

The fourth proportional to 156,407.33, 215,766.01 and 92,700.02 is: 127,880.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,407.33 : 215,766.01 = 92,700.02 : x
  2. Step 2: Convert to fraction form
    156,407.33/215,766.01 = 92,700.02/x
  3. Step 3: Cross multiply
    156,407.33x = 215,766.01 × 92,700.02
  4. Step 4: Simplify right side
    156,407.33x = 20,001,514,097.61
  5. Step 5: Solve for x
    x = 20,001,514,097.61/156,407.33
  6. Step 6: Final answer
    x = 127,880.92

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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.