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Finding the Fourth Proportional to 95,545.80, 143,319.90 and 28,986.60

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Solution

The fourth proportional to 95,545.80, 143,319.90 and 28,986.60 is: 43,480.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,545.80 : 143,319.90 = 28,986.60 : x
  2. Step 2: Convert to fraction form
    95,545.80/143,319.90 = 28,986.60/x
  3. Step 3: Cross multiply
    95,545.80x = 143,319.90 × 28,986.60
  4. Step 4: Simplify right side
    95,545.80x = 4,154,356,613.34
  5. Step 5: Solve for x
    x = 4,154,356,613.34/95,545.80
  6. Step 6: Final answer
    x = 43,480.26

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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.