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Finding the Fourth Proportional to 326,124.72, 489,098.34 and 89,411.13

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Solution

The fourth proportional to 326,124.72, 489,098.34 and 89,411.13 is: 134,092.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,124.72 : 489,098.34 = 89,411.13 : x
  2. Step 2: Convert to fraction form
    326,124.72/489,098.34 = 89,411.13/x
  3. Step 3: Cross multiply
    326,124.72x = 489,098.34 × 89,411.13
  4. Step 4: Simplify right side
    326,124.72x = 43,730,835,260.52
  5. Step 5: Solve for x
    x = 43,730,835,260.52/326,124.72
  6. Step 6: Final answer
    x = 134,092.37

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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.