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Finding the Fourth Proportional to 163,091.80, 244,508.10 and 89,219.80

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Solution

The fourth proportional to 163,091.80, 244,508.10 and 89,219.80 is: 133,758.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,091.80 : 244,508.10 = 89,219.80 : x
  2. Step 2: Convert to fraction form
    163,091.80/244,508.10 = 89,219.80/x
  3. Step 3: Cross multiply
    163,091.80x = 244,508.10 × 89,219.80
  4. Step 4: Simplify right side
    163,091.80x = 21,814,963,780.38
  5. Step 5: Solve for x
    x = 21,814,963,780.38/163,091.80
  6. Step 6: Final answer
    x = 133,758.80

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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.