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Finding the Fourth Proportional to 326,597.29, 489,926.75 and 126,932.96

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Solution

The fourth proportional to 326,597.29, 489,926.75 and 126,932.96 is: 190,411.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,597.29 : 489,926.75 = 126,932.96 : x
  2. Step 2: Convert to fraction form
    326,597.29/489,926.75 = 126,932.96/x
  3. Step 3: Cross multiply
    326,597.29x = 489,926.75 × 126,932.96
  4. Step 4: Simplify right side
    326,597.29x = 62,187,853,150.83
  5. Step 5: Solve for x
    x = 62,187,853,150.83/326,597.29
  6. Step 6: Final answer
    x = 190,411.42

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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.