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Finding the Fourth Proportional to 119,752.56, 179,698.86 and 66,489.42

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Solution

The fourth proportional to 119,752.56, 179,698.86 and 66,489.42 is: 99,773.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,752.56 : 179,698.86 = 66,489.42 : x
  2. Step 2: Convert to fraction form
    119,752.56/179,698.86 = 66,489.42/x
  3. Step 3: Cross multiply
    119,752.56x = 179,698.86 × 66,489.42
  4. Step 4: Simplify right side
    119,752.56x = 11,948,072,976.06
  5. Step 5: Solve for x
    x = 11,948,072,976.06/119,752.56
  6. Step 6: Final answer
    x = 99,773.01

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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.