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Finding the Fourth Proportional to 159,992.76, 239,829.96 and 75,603.60

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Solution

The fourth proportional to 159,992.76, 239,829.96 and 75,603.60 is: 113,330.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,992.76 : 239,829.96 = 75,603.60 : x
  2. Step 2: Convert to fraction form
    159,992.76/239,829.96 = 75,603.60/x
  3. Step 3: Cross multiply
    159,992.76x = 239,829.96 × 75,603.60
  4. Step 4: Simplify right side
    159,992.76x = 18,132,008,363.86
  5. Step 5: Solve for x
    x = 18,132,008,363.86/159,992.76
  6. Step 6: Final answer
    x = 113,330.18

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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.