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Finding the Fourth Proportional to 108,867.80, 163,320.82 and 49,709.46

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Solution

The fourth proportional to 108,867.80, 163,320.82 and 49,709.46 is: 74,572.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,867.80 : 163,320.82 = 49,709.46 : x
  2. Step 2: Convert to fraction form
    108,867.80/163,320.82 = 49,709.46/x
  3. Step 3: Cross multiply
    108,867.80x = 163,320.82 × 49,709.46
  4. Step 4: Simplify right side
    108,867.80x = 8,118,589,768.96
  5. Step 5: Solve for x
    x = 8,118,589,768.96/108,867.80
  6. Step 6: Final answer
    x = 74,572.92

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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.