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Finding the Fourth Proportional to 72,541.62, 108,728.19 and 41,398.74

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Solution

The fourth proportional to 72,541.62, 108,728.19 and 41,398.74 is: 62,050.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,541.62 : 108,728.19 = 41,398.74 : x
  2. Step 2: Convert to fraction form
    72,541.62/108,728.19 = 41,398.74/x
  3. Step 3: Cross multiply
    72,541.62x = 108,728.19 × 41,398.74
  4. Step 4: Simplify right side
    72,541.62x = 4,501,210,068.48
  5. Step 5: Solve for x
    x = 4,501,210,068.48/72,541.62
  6. Step 6: Final answer
    x = 62,050.04

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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.