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Finding the Fourth Proportional to 67,154.68, 100,162.04 and 65,973.88

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Solution

The fourth proportional to 67,154.68, 100,162.04 and 65,973.88 is: 98,400.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,154.68 : 100,162.04 = 65,973.88 : x
  2. Step 2: Convert to fraction form
    67,154.68/100,162.04 = 65,973.88/x
  3. Step 3: Cross multiply
    67,154.68x = 100,162.04 × 65,973.88
  4. Step 4: Simplify right side
    67,154.68x = 6,608,078,407.52
  5. Step 5: Solve for x
    x = 6,608,078,407.52/67,154.68
  6. Step 6: Final answer
    x = 98,400.86

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.