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Finding the Fourth Proportional to 492,341.66, 738,637.04 and 137,355.42

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Solution

The fourth proportional to 492,341.66, 738,637.04 and 137,355.42 is: 206,067.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,341.66 : 738,637.04 = 137,355.42 : x
  2. Step 2: Convert to fraction form
    492,341.66/738,637.04 = 137,355.42/x
  3. Step 3: Cross multiply
    492,341.66x = 738,637.04 × 137,355.42
  4. Step 4: Simplify right side
    492,341.66x = 101,455,800,856.76
  5. Step 5: Solve for x
    x = 101,455,800,856.76/492,341.66
  6. Step 6: Final answer
    x = 206,067.88

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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.