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Finding the Fourth Proportional to 156,891.92, 216,542.34 and 93,217.46

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Solution

The fourth proportional to 156,891.92, 216,542.34 and 93,217.46 is: 128,658.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,891.92 : 216,542.34 = 93,217.46 : x
  2. Step 2: Convert to fraction form
    156,891.92/216,542.34 = 93,217.46/x
  3. Step 3: Cross multiply
    156,891.92x = 216,542.34 × 93,217.46
  4. Step 4: Simplify right side
    156,891.92x = 20,185,526,917.26
  5. Step 5: Solve for x
    x = 20,185,526,917.26/156,891.92
  6. Step 6: Final answer
    x = 128,658.80

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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.