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Finding the Fourth Proportional to 425,156.72, 586,704.12 and 231,560.02

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Solution

The fourth proportional to 425,156.72, 586,704.12 and 231,560.02 is: 319,546.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,156.72 : 586,704.12 = 231,560.02 : x
  2. Step 2: Convert to fraction form
    425,156.72/586,704.12 = 231,560.02/x
  3. Step 3: Cross multiply
    425,156.72x = 586,704.12 × 231,560.02
  4. Step 4: Simplify right side
    425,156.72x = 135,857,214,827.76
  5. Step 5: Solve for x
    x = 135,857,214,827.76/425,156.72
  6. Step 6: Final answer
    x = 319,546.20

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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.