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Finding the Fourth Proportional to 496,087.90, 744,135.90 and 159,129.06

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Solution

The fourth proportional to 496,087.90, 744,135.90 and 159,129.06 is: 238,694.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,087.90 : 744,135.90 = 159,129.06 : x
  2. Step 2: Convert to fraction form
    496,087.90/744,135.90 = 159,129.06/x
  3. Step 3: Cross multiply
    496,087.90x = 744,135.90 × 159,129.06
  4. Step 4: Simplify right side
    496,087.90x = 118,413,646,279.25
  5. Step 5: Solve for x
    x = 118,413,646,279.25/496,087.90
  6. Step 6: Final answer
    x = 238,694.89

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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.