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Finding the Fourth Proportional to 295,207.30, 442,868.55 and 126,727.30

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Solution

The fourth proportional to 295,207.30, 442,868.55 and 126,727.30 is: 190,115.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,207.30 : 442,868.55 = 126,727.30 : x
  2. Step 2: Convert to fraction form
    295,207.30/442,868.55 = 126,727.30/x
  3. Step 3: Cross multiply
    295,207.30x = 442,868.55 × 126,727.30
  4. Step 4: Simplify right side
    295,207.30x = 56,123,535,596.42
  5. Step 5: Solve for x
    x = 56,123,535,596.42/295,207.30
  6. Step 6: Final answer
    x = 190,115.68

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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.