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Finding the Fourth Proportional to 111,635.52, 154,048.08 and 63,877.92

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Solution

The fourth proportional to 111,635.52, 154,048.08 and 63,877.92 is: 88,146.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,635.52 : 154,048.08 = 63,877.92 : x
  2. Step 2: Convert to fraction form
    111,635.52/154,048.08 = 63,877.92/x
  3. Step 3: Cross multiply
    111,635.52x = 154,048.08 × 63,877.92
  4. Step 4: Simplify right side
    111,635.52x = 9,840,270,930.39
  5. Step 5: Solve for x
    x = 9,840,270,930.39/111,635.52
  6. Step 6: Final answer
    x = 88,146.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.