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Finding the Fourth Proportional to 75,110.70, 112,680.63 and 22,515.78

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Solution

The fourth proportional to 75,110.70, 112,680.63 and 22,515.78 is: 33,778.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,110.70 : 112,680.63 = 22,515.78 : x
  2. Step 2: Convert to fraction form
    75,110.70/112,680.63 = 22,515.78/x
  3. Step 3: Cross multiply
    75,110.70x = 112,680.63 × 22,515.78
  4. Step 4: Simplify right side
    75,110.70x = 2,537,092,275.34
  5. Step 5: Solve for x
    x = 2,537,092,275.34/75,110.70
  6. Step 6: Final answer
    x = 33,778.04

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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.