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Finding the Fourth Proportional to 326,510.98, 489,576.18 and 126,597.83

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Solution

The fourth proportional to 326,510.98, 489,576.18 and 126,597.83 is: 189,822.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,510.98 : 489,576.18 = 126,597.83 : x
  2. Step 2: Convert to fraction form
    326,510.98/489,576.18 = 126,597.83/x
  3. Step 3: Cross multiply
    326,510.98x = 489,576.18 × 126,597.83
  4. Step 4: Simplify right side
    326,510.98x = 61,979,280,628.09
  5. Step 5: Solve for x
    x = 61,979,280,628.09/326,510.98
  6. Step 6: Final answer
    x = 189,822.96

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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.