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Finding the Fourth Proportional to 425,122.65, 637,665.53 and 158,885.46

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Solution

The fourth proportional to 425,122.65, 637,665.53 and 158,885.46 is: 238,321.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,122.65 : 637,665.53 = 158,885.46 : x
  2. Step 2: Convert to fraction form
    425,122.65/637,665.53 = 158,885.46/x
  3. Step 3: Cross multiply
    425,122.65x = 637,665.53 × 158,885.46
  4. Step 4: Simplify right side
    425,122.65x = 101,315,780,265.77
  5. Step 5: Solve for x
    x = 101,315,780,265.77/425,122.65
  6. Step 6: Final answer
    x = 238,321.29

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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.