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Finding the Fourth Proportional to 295,254.80, 442,882.20 and 205,053.20

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Solution

The fourth proportional to 295,254.80, 442,882.20 and 205,053.20 is: 307,579.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,254.80 : 442,882.20 = 205,053.20 : x
  2. Step 2: Convert to fraction form
    295,254.80/442,882.20 = 205,053.20/x
  3. Step 3: Cross multiply
    295,254.80x = 442,882.20 × 205,053.20
  4. Step 4: Simplify right side
    295,254.80x = 90,814,412,333.04
  5. Step 5: Solve for x
    x = 90,814,412,333.04/295,254.80
  6. Step 6: Final answer
    x = 307,579.80

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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.