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Finding the Fourth Proportional to 74,995.20, 112,475.52 and 22,403.52

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Solution

The fourth proportional to 74,995.20, 112,475.52 and 22,403.52 is: 33,600.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,995.20 : 112,475.52 = 22,403.52 : x
  2. Step 2: Convert to fraction form
    74,995.20/112,475.52 = 22,403.52/x
  3. Step 3: Cross multiply
    74,995.20x = 112,475.52 × 22,403.52
  4. Step 4: Simplify right side
    74,995.20x = 2,519,847,561.83
  5. Step 5: Solve for x
    x = 2,519,847,561.83/74,995.20
  6. Step 6: Final answer
    x = 33,600.12

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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.