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Finding the Fourth Proportional to 245,892.20, 368,751.90 and 88,125.80

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Solution

The fourth proportional to 245,892.20, 368,751.90 and 88,125.80 is: 132,157.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,892.20 : 368,751.90 = 88,125.80 : x
  2. Step 2: Convert to fraction form
    245,892.20/368,751.90 = 88,125.80/x
  3. Step 3: Cross multiply
    245,892.20x = 368,751.90 × 88,125.80
  4. Step 4: Simplify right side
    245,892.20x = 32,496,556,189.02
  5. Step 5: Solve for x
    x = 32,496,556,189.02/245,892.20
  6. Step 6: Final answer
    x = 132,157.73

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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.