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Finding the Fourth Proportional to 157,635.20, 236,452.80 and 148,419.20

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Solution

The fourth proportional to 157,635.20, 236,452.80 and 148,419.20 is: 222,628.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,635.20 : 236,452.80 = 148,419.20 : x
  2. Step 2: Convert to fraction form
    157,635.20/236,452.80 = 148,419.20/x
  3. Step 3: Cross multiply
    157,635.20x = 236,452.80 × 148,419.20
  4. Step 4: Simplify right side
    157,635.20x = 35,094,135,413.76
  5. Step 5: Solve for x
    x = 35,094,135,413.76/157,635.20
  6. Step 6: Final answer
    x = 222,628.80

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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.