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Finding the Fourth Proportional to 72,246.84, 108,347.80 and 25,488.76

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Solution

The fourth proportional to 72,246.84, 108,347.80 and 25,488.76 is: 38,225.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,246.84 : 108,347.80 = 25,488.76 : x
  2. Step 2: Convert to fraction form
    72,246.84/108,347.80 = 25,488.76/x
  3. Step 3: Cross multiply
    72,246.84x = 108,347.80 × 25,488.76
  4. Step 4: Simplify right side
    72,246.84x = 2,761,651,070.73
  5. Step 5: Solve for x
    x = 2,761,651,070.73/72,246.84
  6. Step 6: Final answer
    x = 38,225.22

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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.