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Finding the Fourth Proportional to 321,592.17, 482,047.92 and 108,156.90

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Solution

The fourth proportional to 321,592.17, 482,047.92 and 108,156.90 is: 162,120.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,592.17 : 482,047.92 = 108,156.90 : x
  2. Step 2: Convert to fraction form
    321,592.17/482,047.92 = 108,156.90/x
  3. Step 3: Cross multiply
    321,592.17x = 482,047.92 × 108,156.90
  4. Step 4: Simplify right side
    321,592.17x = 52,136,808,678.65
  5. Step 5: Solve for x
    x = 52,136,808,678.65/321,592.17
  6. Step 6: Final answer
    x = 162,120.89

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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.