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Finding the Fourth Proportional to 159,028.61, 238,572.17 and 52,418.90

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Solution

The fourth proportional to 159,028.61, 238,572.17 and 52,418.90 is: 78,637.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,028.61 : 238,572.17 = 52,418.90 : x
  2. Step 2: Convert to fraction form
    159,028.61/238,572.17 = 52,418.90/x
  3. Step 3: Cross multiply
    159,028.61x = 238,572.17 × 52,418.90
  4. Step 4: Simplify right side
    159,028.61x = 12,505,689,267.06
  5. Step 5: Solve for x
    x = 12,505,689,267.06/159,028.61
  6. Step 6: Final answer
    x = 78,637.99

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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.