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Finding the Fourth Proportional to 162,241.91, 243,403.01 and 67,443.66

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Solution

The fourth proportional to 162,241.91, 243,403.01 and 67,443.66 is: 101,182.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,241.91 : 243,403.01 = 67,443.66 : x
  2. Step 2: Convert to fraction form
    162,241.91/243,403.01 = 67,443.66/x
  3. Step 3: Cross multiply
    162,241.91x = 243,403.01 × 67,443.66
  4. Step 4: Simplify right side
    162,241.91x = 16,415,989,512.20
  5. Step 5: Solve for x
    x = 16,415,989,512.20/162,241.91
  6. Step 6: Final answer
    x = 101,182.18

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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.