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Finding the Fourth Proportional to 471,375.77, 707,130.12 and 151,420.35

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Solution

The fourth proportional to 471,375.77, 707,130.12 and 151,420.35 is: 227,151.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,375.77 : 707,130.12 = 151,420.35 : x
  2. Step 2: Convert to fraction form
    471,375.77/707,130.12 = 151,420.35/x
  3. Step 3: Cross multiply
    471,375.77x = 707,130.12 × 151,420.35
  4. Step 4: Simplify right side
    471,375.77x = 107,073,890,265.94
  5. Step 5: Solve for x
    x = 107,073,890,265.94/471,375.77
  6. Step 6: Final answer
    x = 227,151.88

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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.