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Finding the Fourth Proportional to 112,793.92, 155,655.59 and 67,473.81

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Solution

The fourth proportional to 112,793.92, 155,655.59 and 67,473.81 is: 93,113.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,793.92 : 155,655.59 = 67,473.81 : x
  2. Step 2: Convert to fraction form
    112,793.92/155,655.59 = 67,473.81/x
  3. Step 3: Cross multiply
    112,793.92x = 155,655.59 × 67,473.81
  4. Step 4: Simplify right side
    112,793.92x = 10,502,675,367.73
  5. Step 5: Solve for x
    x = 10,502,675,367.73/112,793.92
  6. Step 6: Final answer
    x = 93,113.85

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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.