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Finding the Fourth Proportional to 156,842.96, 216,418.92 and 93,179.12

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Solution

The fourth proportional to 156,842.96, 216,418.92 and 93,179.12 is: 128,572.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,842.96 : 216,418.92 = 93,179.12 : x
  2. Step 2: Convert to fraction form
    156,842.96/216,418.92 = 93,179.12/x
  3. Step 3: Cross multiply
    156,842.96x = 216,418.92 × 93,179.12
  4. Step 4: Simplify right side
    156,842.96x = 20,165,724,516.95
  5. Step 5: Solve for x
    x = 20,165,724,516.95/156,842.96
  6. Step 6: Final answer
    x = 128,572.71

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1.5x scale

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.