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Finding the Fourth Proportional to 67,707.60, 101,577.60 and 28,244.40

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Solution

The fourth proportional to 67,707.60, 101,577.60 and 28,244.40 is: 42,373.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,707.60 : 101,577.60 = 28,244.40 : x
  2. Step 2: Convert to fraction form
    67,707.60/101,577.60 = 28,244.40/x
  3. Step 3: Cross multiply
    67,707.60x = 101,577.60 × 28,244.40
  4. Step 4: Simplify right side
    67,707.60x = 2,868,998,365.44
  5. Step 5: Solve for x
    x = 2,868,998,365.44/67,707.60
  6. Step 6: Final answer
    x = 42,373.36

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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.