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Finding the Fourth Proportional to 435,574.92, 653,381.82 and 136,061.40

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Solution

The fourth proportional to 435,574.92, 653,381.82 and 136,061.40 is: 204,098.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,574.92 : 653,381.82 = 136,061.40 : x
  2. Step 2: Convert to fraction form
    435,574.92/653,381.82 = 136,061.40/x
  3. Step 3: Cross multiply
    435,574.92x = 653,381.82 × 136,061.40
  4. Step 4: Simplify right side
    435,574.92x = 88,900,045,163.75
  5. Step 5: Solve for x
    x = 88,900,045,163.75/435,574.92
  6. Step 6: Final answer
    x = 204,098.17

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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.