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Finding the Fourth Proportional to 100,375.62, 150,577.20 and 58,275.48

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Solution

The fourth proportional to 100,375.62, 150,577.20 and 58,275.48 is: 87,421.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,375.62 : 150,577.20 = 58,275.48 : x
  2. Step 2: Convert to fraction form
    100,375.62/150,577.20 = 58,275.48/x
  3. Step 3: Cross multiply
    100,375.62x = 150,577.20 × 58,275.48
  4. Step 4: Simplify right side
    100,375.62x = 8,774,958,607.06
  5. Step 5: Solve for x
    x = 8,774,958,607.06/100,375.62
  6. Step 6: Final answer
    x = 87,421.21

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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.