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Finding the Fourth Proportional to 342,987.65, 514,500.92 and 106,363.97

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Solution

The fourth proportional to 342,987.65, 514,500.92 and 106,363.97 is: 159,551.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,987.65 : 514,500.92 = 106,363.97 : x
  2. Step 2: Convert to fraction form
    342,987.65/514,500.92 = 106,363.97/x
  3. Step 3: Cross multiply
    342,987.65x = 514,500.92 × 106,363.97
  4. Step 4: Simplify right side
    342,987.65x = 54,724,359,888.03
  5. Step 5: Solve for x
    x = 54,724,359,888.03/342,987.65
  6. Step 6: Final answer
    x = 159,551.98

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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.