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Finding the Fourth Proportional to 74,255.39, 111,365.84 and 44,278

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Solution

The fourth proportional to 74,255.39, 111,365.84 and 44,278 is: 66,406.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,255.39 : 111,365.84 = 44,278 : x
  2. Step 2: Convert to fraction form
    74,255.39/111,365.84 = 44,278/x
  3. Step 3: Cross multiply
    74,255.39x = 111,365.84 × 44,278
  4. Step 4: Simplify right side
    74,255.39x = 4,931,056,663.52
  5. Step 5: Solve for x
    x = 4,931,056,663.52/74,255.39
  6. Step 6: Final answer
    x = 66,406.72

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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.