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Finding the Fourth Proportional to 72,600.25, 108,904.48 and 25,853.13

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Solution

The fourth proportional to 72,600.25, 108,904.48 and 25,853.13 is: 38,781.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,600.25 : 108,904.48 = 25,853.13 : x
  2. Step 2: Convert to fraction form
    72,600.25/108,904.48 = 25,853.13/x
  3. Step 3: Cross multiply
    72,600.25x = 108,904.48 × 25,853.13
  4. Step 4: Simplify right side
    72,600.25x = 2,815,521,679.02
  5. Step 5: Solve for x
    x = 2,815,521,679.02/72,600.25
  6. Step 6: Final answer
    x = 38,781.16

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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.