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Finding the Fourth Proportional to 73,820.55, 110,864.19 and 67,886.49

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Solution

The fourth proportional to 73,820.55, 110,864.19 and 67,886.49 is: 101,952.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,820.55 : 110,864.19 = 67,886.49 : x
  2. Step 2: Convert to fraction form
    73,820.55/110,864.19 = 67,886.49/x
  3. Step 3: Cross multiply
    73,820.55x = 110,864.19 × 67,886.49
  4. Step 4: Simplify right side
    73,820.55x = 7,526,180,725.79
  5. Step 5: Solve for x
    x = 7,526,180,725.79/73,820.55
  6. Step 6: Final answer
    x = 101,952.38

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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.