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Finding the Fourth Proportional to 469,288.19, 703,869.85 and 132,355.90

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Solution

The fourth proportional to 469,288.19, 703,869.85 and 132,355.90 is: 198,516.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,288.19 : 703,869.85 = 132,355.90 : x
  2. Step 2: Convert to fraction form
    469,288.19/703,869.85 = 132,355.90/x
  3. Step 3: Cross multiply
    469,288.19x = 703,869.85 × 132,355.90
  4. Step 4: Simplify right side
    469,288.19x = 93,161,328,524.90
  5. Step 5: Solve for x
    x = 93,161,328,524.90/469,288.19
  6. Step 6: Final answer
    x = 198,516.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.