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Finding the Fourth Proportional to 295,174.80, 442,675.80 and 105,613.20

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Solution

The fourth proportional to 295,174.80, 442,675.80 and 105,613.20 is: 158,388.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,174.80 : 442,675.80 = 105,613.20 : x
  2. Step 2: Convert to fraction form
    295,174.80/442,675.80 = 105,613.20/x
  3. Step 3: Cross multiply
    295,174.80x = 442,675.80 × 105,613.20
  4. Step 4: Simplify right side
    295,174.80x = 46,752,407,800.56
  5. Step 5: Solve for x
    x = 46,752,407,800.56/295,174.80
  6. Step 6: Final answer
    x = 158,388.89

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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.