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Finding the Fourth Proportional to 150,271.85, 207,375.15 and 86,613.75

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Solution

The fourth proportional to 150,271.85, 207,375.15 and 86,613.75 is: 119,526.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,271.85 : 207,375.15 = 86,613.75 : x
  2. Step 2: Convert to fraction form
    150,271.85/207,375.15 = 86,613.75/x
  3. Step 3: Cross multiply
    150,271.85x = 207,375.15 × 86,613.75
  4. Step 4: Simplify right side
    150,271.85x = 17,961,539,398.31
  5. Step 5: Solve for x
    x = 17,961,539,398.31/150,271.85
  6. Step 6: Final answer
    x = 119,526.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.