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Finding the Fourth Proportional to 425,158.72, 586,706.88 and 231,562.02

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Solution

The fourth proportional to 425,158.72, 586,706.88 and 231,562.02 is: 319,548.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,158.72 : 586,706.88 = 231,562.02 : x
  2. Step 2: Convert to fraction form
    425,158.72/586,706.88 = 231,562.02/x
  3. Step 3: Cross multiply
    425,158.72x = 586,706.88 × 231,562.02
  4. Step 4: Simplify right side
    425,158.72x = 135,859,030,280.70
  5. Step 5: Solve for x
    x = 135,859,030,280.70/425,158.72
  6. Step 6: Final answer
    x = 319,548.97

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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.