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Finding the Fourth Proportional to 159,856.76, 239,556.87 and 117,403.92

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Solution

The fourth proportional to 159,856.76, 239,556.87 and 117,403.92 is: 175,938.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,856.76 : 239,556.87 = 117,403.92 : x
  2. Step 2: Convert to fraction form
    159,856.76/239,556.87 = 117,403.92/x
  3. Step 3: Cross multiply
    159,856.76x = 239,556.87 × 117,403.92
  4. Step 4: Simplify right side
    159,856.76x = 28,124,915,600.93
  5. Step 5: Solve for x
    x = 28,124,915,600.93/159,856.76
  6. Step 6: Final answer
    x = 175,938.23

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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.