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Finding the Fourth Proportional to 72,957.64, 100,680.12 and 41,125.92

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Solution

The fourth proportional to 72,957.64, 100,680.12 and 41,125.92 is: 56,752.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,957.64 : 100,680.12 = 41,125.92 : x
  2. Step 2: Convert to fraction form
    72,957.64/100,680.12 = 41,125.92/x
  3. Step 3: Cross multiply
    72,957.64x = 100,680.12 × 41,125.92
  4. Step 4: Simplify right side
    72,957.64x = 4,140,562,560.71
  5. Step 5: Solve for x
    x = 4,140,562,560.71/72,957.64
  6. Step 6: Final answer
    x = 56,752.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.