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Finding the Fourth Proportional to 295,048.65, 442,572.30 and 126,459.66

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Solution

The fourth proportional to 295,048.65, 442,572.30 and 126,459.66 is: 189,689.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,048.65 : 442,572.30 = 126,459.66 : x
  2. Step 2: Convert to fraction form
    295,048.65/442,572.30 = 126,459.66/x
  3. Step 3: Cross multiply
    295,048.65x = 442,572.30 × 126,459.66
  4. Step 4: Simplify right side
    295,048.65x = 55,967,542,583.42
  5. Step 5: Solve for x
    x = 55,967,542,583.42/295,048.65
  6. Step 6: Final answer
    x = 189,689.20

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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.