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Finding the Fourth Proportional to 73,359.28, 110,035.29 and 42,981.62

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Solution

The fourth proportional to 73,359.28, 110,035.29 and 42,981.62 is: 64,470.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,359.28 : 110,035.29 = 42,981.62 : x
  2. Step 2: Convert to fraction form
    73,359.28/110,035.29 = 42,981.62/x
  3. Step 3: Cross multiply
    73,359.28x = 110,035.29 × 42,981.62
  4. Step 4: Simplify right side
    73,359.28x = 4,729,495,296.46
  5. Step 5: Solve for x
    x = 4,729,495,296.46/73,359.28
  6. Step 6: Final answer
    x = 64,470.31

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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.