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Finding the Fourth Proportional to 259,990.52, 358,764.65 and 149,612.74

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Solution

The fourth proportional to 259,990.52, 358,764.65 and 149,612.74 is: 206,452.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,990.52 : 358,764.65 = 149,612.74 : x
  2. Step 2: Convert to fraction form
    259,990.52/358,764.65 = 149,612.74/x
  3. Step 3: Cross multiply
    259,990.52x = 358,764.65 × 149,612.74
  4. Step 4: Simplify right side
    259,990.52x = 53,675,762,301.64
  5. Step 5: Solve for x
    x = 53,675,762,301.64/259,990.52
  6. Step 6: Final answer
    x = 206,452.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.