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Finding the Fourth Proportional to 73,695.30, 101,712.78 and 43,478.88

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Solution

The fourth proportional to 73,695.30, 101,712.78 and 43,478.88 is: 60,008.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,695.30 : 101,712.78 = 43,478.88 : x
  2. Step 2: Convert to fraction form
    73,695.30/101,712.78 = 43,478.88/x
  3. Step 3: Cross multiply
    73,695.30x = 101,712.78 × 43,478.88
  4. Step 4: Simplify right side
    73,695.30x = 4,422,357,756.09
  5. Step 5: Solve for x
    x = 4,422,357,756.09/73,695.30
  6. Step 6: Final answer
    x = 60,008.68

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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.