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Finding the Fourth Proportional to 104,840.64, 144,691.65 and 64,546.38

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Solution

The fourth proportional to 104,840.64, 144,691.65 and 64,546.38 is: 89,081.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,840.64 : 144,691.65 = 64,546.38 : x
  2. Step 2: Convert to fraction form
    104,840.64/144,691.65 = 64,546.38/x
  3. Step 3: Cross multiply
    104,840.64x = 144,691.65 × 64,546.38
  4. Step 4: Simplify right side
    104,840.64x = 9,339,322,223.73
  5. Step 5: Solve for x
    x = 9,339,322,223.73/104,840.64
  6. Step 6: Final answer
    x = 89,081.13

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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.