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Finding the Fourth Proportional to 156,909.87, 216,591.12 and 93,246.89

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Solution

The fourth proportional to 156,909.87, 216,591.12 and 93,246.89 is: 128,713.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,909.87 : 216,591.12 = 93,246.89 : x
  2. Step 2: Convert to fraction form
    156,909.87/216,591.12 = 93,246.89/x
  3. Step 3: Cross multiply
    156,909.87x = 216,591.12 × 93,246.89
  4. Step 4: Simplify right side
    156,909.87x = 20,196,447,258.66
  5. Step 5: Solve for x
    x = 20,196,447,258.66/156,909.87
  6. Step 6: Final answer
    x = 128,713.68

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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.