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Finding the Fourth Proportional to 110,739.87, 152,820.92 and 60,438.87

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Solution

The fourth proportional to 110,739.87, 152,820.92 and 60,438.87 is: 83,405.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,739.87 : 152,820.92 = 60,438.87 : x
  2. Step 2: Convert to fraction form
    110,739.87/152,820.92 = 60,438.87/x
  3. Step 3: Cross multiply
    110,739.87x = 152,820.92 × 60,438.87
  4. Step 4: Simplify right side
    110,739.87x = 9,236,323,414.97
  5. Step 5: Solve for x
    x = 9,236,323,414.97/110,739.87
  6. Step 6: Final answer
    x = 83,405.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.