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Finding the Fourth Proportional to 144,036.70, 198,750.99 and 80,366.38

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Solution

The fourth proportional to 144,036.70, 198,750.99 and 80,366.38 is: 110,894.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,036.70 : 198,750.99 = 80,366.38 : x
  2. Step 2: Convert to fraction form
    144,036.70/198,750.99 = 80,366.38/x
  3. Step 3: Cross multiply
    144,036.70x = 198,750.99 × 80,366.38
  4. Step 4: Simplify right side
    144,036.70x = 15,972,897,587.72
  5. Step 5: Solve for x
    x = 15,972,897,587.72/144,036.70
  6. Step 6: Final answer
    x = 110,894.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.