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Finding the Fourth Proportional to 425,310.93, 637,945.18 and 159,051.87

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Solution

The fourth proportional to 425,310.93, 637,945.18 and 159,051.87 is: 238,569.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,310.93 : 637,945.18 = 159,051.87 : x
  2. Step 2: Convert to fraction form
    425,310.93/637,945.18 = 159,051.87/x
  3. Step 3: Cross multiply
    425,310.93x = 637,945.18 × 159,051.87
  4. Step 4: Simplify right side
    425,310.93x = 101,466,373,836.49
  5. Step 5: Solve for x
    x = 101,466,373,836.49/425,310.93
  6. Step 6: Final answer
    x = 238,569.87

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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.