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Finding the Fourth Proportional to 73,620.80, 101,606.08 and 54,811.52

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Solution

The fourth proportional to 73,620.80, 101,606.08 and 54,811.52 is: 75,646.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,620.80 : 101,606.08 = 54,811.52 : x
  2. Step 2: Convert to fraction form
    73,620.80/101,606.08 = 54,811.52/x
  3. Step 3: Cross multiply
    73,620.80x = 101,606.08 × 54,811.52
  4. Step 4: Simplify right side
    73,620.80x = 5,569,183,686.04
  5. Step 5: Solve for x
    x = 5,569,183,686.04/73,620.80
  6. Step 6: Final answer
    x = 75,646.88

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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.