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Finding the Fourth Proportional to 117,874.83, 176,814.07 and 65,616.47

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Solution

The fourth proportional to 117,874.83, 176,814.07 and 65,616.47 is: 98,425.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,874.83 : 176,814.07 = 65,616.47 : x
  2. Step 2: Convert to fraction form
    117,874.83/176,814.07 = 65,616.47/x
  3. Step 3: Cross multiply
    117,874.83x = 176,814.07 × 65,616.47
  4. Step 4: Simplify right side
    117,874.83x = 11,601,915,119.73
  5. Step 5: Solve for x
    x = 11,601,915,119.73/117,874.83
  6. Step 6: Final answer
    x = 98,425.72

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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.