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Finding the Fourth Proportional to 64,375.16, 88,820.11 and 38,523.30

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Solution

The fourth proportional to 64,375.16, 88,820.11 and 38,523.30 is: 53,151.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,375.16 : 88,820.11 = 38,523.30 : x
  2. Step 2: Convert to fraction form
    64,375.16/88,820.11 = 38,523.30/x
  3. Step 3: Cross multiply
    64,375.16x = 88,820.11 × 38,523.30
  4. Step 4: Simplify right side
    64,375.16x = 3,421,643,743.56
  5. Step 5: Solve for x
    x = 3,421,643,743.56/64,375.16
  6. Step 6: Final answer
    x = 53,151.62

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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.