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Finding the Fourth Proportional to 72,797.46, 100,460.18 and 40,966.89

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Solution

The fourth proportional to 72,797.46, 100,460.18 and 40,966.89 is: 56,534.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,797.46 : 100,460.18 = 40,966.89 : x
  2. Step 2: Convert to fraction form
    72,797.46/100,460.18 = 40,966.89/x
  3. Step 3: Cross multiply
    72,797.46x = 100,460.18 × 40,966.89
  4. Step 4: Simplify right side
    72,797.46x = 4,115,540,938.61
  5. Step 5: Solve for x
    x = 4,115,540,938.61/72,797.46
  6. Step 6: Final answer
    x = 56,534.13

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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.