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Finding the Fourth Proportional to 74,790.60, 112,161.60 and 24,862.20

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Solution

The fourth proportional to 74,790.60, 112,161.60 and 24,862.20 is: 37,285.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,790.60 : 112,161.60 = 24,862.20 : x
  2. Step 2: Convert to fraction form
    74,790.60/112,161.60 = 24,862.20/x
  3. Step 3: Cross multiply
    74,790.60x = 112,161.60 × 24,862.20
  4. Step 4: Simplify right side
    74,790.60x = 2,788,584,131.52
  5. Step 5: Solve for x
    x = 2,788,584,131.52/74,790.60
  6. Step 6: Final answer
    x = 37,285.22

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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.