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Finding the Fourth Proportional to 119,836.40, 179,729.40 and 60,616.40

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Solution

The fourth proportional to 119,836.40, 179,729.40 and 60,616.40 is: 90,911.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,836.40 : 179,729.40 = 60,616.40 : x
  2. Step 2: Convert to fraction form
    119,836.40/179,729.40 = 60,616.40/x
  3. Step 3: Cross multiply
    119,836.40x = 179,729.40 × 60,616.40
  4. Step 4: Simplify right side
    119,836.40x = 10,894,549,202.16
  5. Step 5: Solve for x
    x = 10,894,549,202.16/119,836.40
  6. Step 6: Final answer
    x = 90,911.85

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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.