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Finding the Fourth Proportional to 108,393.48, 162,642.06 and 38,305.80

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Solution

The fourth proportional to 108,393.48, 162,642.06 and 38,305.80 is: 57,477.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,393.48 : 162,642.06 = 38,305.80 : x
  2. Step 2: Convert to fraction form
    108,393.48/162,642.06 = 38,305.80/x
  3. Step 3: Cross multiply
    108,393.48x = 162,642.06 × 38,305.80
  4. Step 4: Simplify right side
    108,393.48x = 6,230,134,221.95
  5. Step 5: Solve for x
    x = 6,230,134,221.95/108,393.48
  6. Step 6: Final answer
    x = 57,477.02

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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.