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Finding the Fourth Proportional to 73,366.34, 110,007.30 and 39,129.90

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Solution

The fourth proportional to 73,366.34, 110,007.30 and 39,129.90 is: 58,672.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,366.34 : 110,007.30 = 39,129.90 : x
  2. Step 2: Convert to fraction form
    73,366.34/110,007.30 = 39,129.90/x
  3. Step 3: Cross multiply
    73,366.34x = 110,007.30 × 39,129.90
  4. Step 4: Simplify right side
    73,366.34x = 4,304,574,648.27
  5. Step 5: Solve for x
    x = 4,304,574,648.27/73,366.34
  6. Step 6: Final answer
    x = 58,672.34

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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.