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Finding the Fourth Proportional to 73,429.62, 110,032.28 and 54,618.68

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Solution

The fourth proportional to 73,429.62, 110,032.28 and 54,618.68 is: 81,844.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,429.62 : 110,032.28 = 54,618.68 : x
  2. Step 2: Convert to fraction form
    73,429.62/110,032.28 = 54,618.68/x
  3. Step 3: Cross multiply
    73,429.62x = 110,032.28 × 54,618.68
  4. Step 4: Simplify right side
    73,429.62x = 6,009,817,890.99
  5. Step 5: Solve for x
    x = 6,009,817,890.99/73,429.62
  6. Step 6: Final answer
    x = 81,844.60

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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.