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Finding the Fourth Proportional to 71,648.73, 98,886.14 and 51,572.07

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Solution

The fourth proportional to 71,648.73, 98,886.14 and 51,572.07 is: 71,177.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,648.73 : 98,886.14 = 51,572.07 : x
  2. Step 2: Convert to fraction form
    71,648.73/98,886.14 = 51,572.07/x
  3. Step 3: Cross multiply
    71,648.73x = 98,886.14 × 51,572.07
  4. Step 4: Simplify right side
    71,648.73x = 5,099,762,934.11
  5. Step 5: Solve for x
    x = 5,099,762,934.11/71,648.73
  6. Step 6: Final answer
    x = 71,177.30

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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.