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Finding the Fourth Proportional to 326,510.09, 489,495.22 and 124,064.29

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Solution

The fourth proportional to 326,510.09, 489,495.22 and 124,064.29 is: 185,993.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,510.09 : 489,495.22 = 124,064.29 : x
  2. Step 2: Convert to fraction form
    326,510.09/489,495.22 = 124,064.29/x
  3. Step 3: Cross multiply
    326,510.09x = 489,495.22 × 124,064.29
  4. Step 4: Simplify right side
    326,510.09x = 60,728,877,229.40
  5. Step 5: Solve for x
    x = 60,728,877,229.40/326,510.09
  6. Step 6: Final answer
    x = 185,993.88

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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.