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Finding the Fourth Proportional to 119,539.32, 179,419.80 and 60,416.60

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Solution

The fourth proportional to 119,539.32, 179,419.80 and 60,416.60 is: 90,680.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,539.32 : 179,419.80 = 60,416.60 : x
  2. Step 2: Convert to fraction form
    119,539.32/179,419.80 = 60,416.60/x
  3. Step 3: Cross multiply
    119,539.32x = 179,419.80 × 60,416.60
  4. Step 4: Simplify right side
    119,539.32x = 10,839,934,288.68
  5. Step 5: Solve for x
    x = 10,839,934,288.68/119,539.32
  6. Step 6: Final answer
    x = 90,680.91

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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.