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Finding the Fourth Proportional to 425,306.68, 637,938.82 and 159,047.62

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Solution

The fourth proportional to 425,306.68, 637,938.82 and 159,047.62 is: 238,563.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,306.68 : 637,938.82 = 159,047.62 : x
  2. Step 2: Convert to fraction form
    425,306.68/637,938.82 = 159,047.62/x
  3. Step 3: Cross multiply
    425,306.68x = 637,938.82 × 159,047.62
  4. Step 4: Simplify right side
    425,306.68x = 101,462,651,026.61
  5. Step 5: Solve for x
    x = 101,462,651,026.61/425,306.68
  6. Step 6: Final answer
    x = 238,563.50

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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.