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Finding the Fourth Proportional to 140,197.93, 193,472.13 and 76,535.71

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Solution

The fourth proportional to 140,197.93, 193,472.13 and 76,535.71 is: 105,618.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,197.93 : 193,472.13 = 76,535.71 : x
  2. Step 2: Convert to fraction form
    140,197.93/193,472.13 = 76,535.71/x
  3. Step 3: Cross multiply
    140,197.93x = 193,472.13 × 76,535.71
  4. Step 4: Simplify right side
    140,197.93x = 14,807,526,834.76
  5. Step 5: Solve for x
    x = 14,807,526,834.76/140,197.93
  6. Step 6: Final answer
    x = 105,618.73

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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.