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Finding the Fourth Proportional to 119,182.52, 178,849.08 and 66,626.48

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Solution

The fourth proportional to 119,182.52, 178,849.08 and 66,626.48 is: 99,981.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,182.52 : 178,849.08 = 66,626.48 : x
  2. Step 2: Convert to fraction form
    119,182.52/178,849.08 = 66,626.48/x
  3. Step 3: Cross multiply
    119,182.52x = 178,849.08 × 66,626.48
  4. Step 4: Simplify right side
    119,182.52x = 11,916,084,651.64
  5. Step 5: Solve for x
    x = 11,916,084,651.64/119,182.52
  6. Step 6: Final answer
    x = 99,981.81

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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.