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Finding the Fourth Proportional to 108,649.42, 162,933.17 and 45,473.92

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Solution

The fourth proportional to 108,649.42, 162,933.17 and 45,473.92 is: 68,193.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,649.42 : 162,933.17 = 45,473.92 : x
  2. Step 2: Convert to fraction form
    108,649.42/162,933.17 = 45,473.92/x
  3. Step 3: Cross multiply
    108,649.42x = 162,933.17 × 45,473.92
  4. Step 4: Simplify right side
    108,649.42x = 7,409,209,303.22
  5. Step 5: Solve for x
    x = 7,409,209,303.22/108,649.42
  6. Step 6: Final answer
    x = 68,193.73

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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.