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Finding the Fourth Proportional to 242,276.80, 363,415.20 and 167,627.20

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Solution

The fourth proportional to 242,276.80, 363,415.20 and 167,627.20 is: 251,440.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,276.80 : 363,415.20 = 167,627.20 : x
  2. Step 2: Convert to fraction form
    242,276.80/363,415.20 = 167,627.20/x
  3. Step 3: Cross multiply
    242,276.80x = 363,415.20 × 167,627.20
  4. Step 4: Simplify right side
    242,276.80x = 60,918,272,413.44
  5. Step 5: Solve for x
    x = 60,918,272,413.44/242,276.80
  6. Step 6: Final answer
    x = 251,440.80

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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.