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Finding the Fourth Proportional to 83,641.31, 125,486.53 and 33,695.72

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Solution

The fourth proportional to 83,641.31, 125,486.53 and 33,695.72 is: 50,553.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,641.31 : 125,486.53 = 33,695.72 : x
  2. Step 2: Convert to fraction form
    83,641.31/125,486.53 = 33,695.72/x
  3. Step 3: Cross multiply
    83,641.31x = 125,486.53 × 33,695.72
  4. Step 4: Simplify right side
    83,641.31x = 4,228,358,266.98
  5. Step 5: Solve for x
    x = 4,228,358,266.98/83,641.31
  6. Step 6: Final answer
    x = 50,553.47

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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.