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Finding the Fourth Proportional to 73,036.64, 109,815.78 and 67,262.96

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Solution

The fourth proportional to 73,036.64, 109,815.78 and 67,262.96 is: 101,134.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,036.64 : 109,815.78 = 67,262.96 : x
  2. Step 2: Convert to fraction form
    73,036.64/109,815.78 = 67,262.96/x
  3. Step 3: Cross multiply
    73,036.64x = 109,815.78 × 67,262.96
  4. Step 4: Simplify right side
    73,036.64x = 7,386,534,944.28
  5. Step 5: Solve for x
    x = 7,386,534,944.28/73,036.64
  6. Step 6: Final answer
    x = 101,134.65

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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.