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Finding the Fourth Proportional to 104,691.90, 157,032.65 and 33,618.02

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Solution

The fourth proportional to 104,691.90, 157,032.65 and 33,618.02 is: 50,425.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,691.90 : 157,032.65 = 33,618.02 : x
  2. Step 2: Convert to fraction form
    104,691.90/157,032.65 = 33,618.02/x
  3. Step 3: Cross multiply
    104,691.90x = 157,032.65 × 33,618.02
  4. Step 4: Simplify right side
    104,691.90x = 5,279,125,983.19
  5. Step 5: Solve for x
    x = 5,279,125,983.19/104,691.90
  6. Step 6: Final answer
    x = 50,425.35

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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.