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Finding the Fourth Proportional to 72,490.66, 108,746.13 and 22,574.38

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Solution

The fourth proportional to 72,490.66, 108,746.13 and 22,574.38 is: 33,864.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,490.66 : 108,746.13 = 22,574.38 : x
  2. Step 2: Convert to fraction form
    72,490.66/108,746.13 = 22,574.38/x
  3. Step 3: Cross multiply
    72,490.66x = 108,746.13 × 22,574.38
  4. Step 4: Simplify right side
    72,490.66x = 2,454,876,462.15
  5. Step 5: Solve for x
    x = 2,454,876,462.15/72,490.66
  6. Step 6: Final answer
    x = 33,864.73

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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.