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Finding the Fourth Proportional to 73,953.20, 110,929.80 and 61,487.30

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Solution

The fourth proportional to 73,953.20, 110,929.80 and 61,487.30 is: 92,230.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,953.20 : 110,929.80 = 61,487.30 : x
  2. Step 2: Convert to fraction form
    73,953.20/110,929.80 = 61,487.30/x
  3. Step 3: Cross multiply
    73,953.20x = 110,929.80 × 61,487.30
  4. Step 4: Simplify right side
    73,953.20x = 6,820,773,891.54
  5. Step 5: Solve for x
    x = 6,820,773,891.54/73,953.20
  6. Step 6: Final answer
    x = 92,230.95

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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.