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Finding the Fourth Proportional to 353,766.65, 530,521.49 and 154,038.88

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Solution

The fourth proportional to 353,766.65, 530,521.49 and 154,038.88 is: 231,002.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,766.65 : 530,521.49 = 154,038.88 : x
  2. Step 2: Convert to fraction form
    353,766.65/530,521.49 = 154,038.88/x
  3. Step 3: Cross multiply
    353,766.65x = 530,521.49 × 154,038.88
  4. Step 4: Simplify right side
    353,766.65x = 81,720,936,135.53
  5. Step 5: Solve for x
    x = 81,720,936,135.53/353,766.65
  6. Step 6: Final answer
    x = 231,002.37

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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.