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Finding the Fourth Proportional to 109,397.80, 163,902.30 and 93,845.80

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Solution

The fourth proportional to 109,397.80, 163,902.30 and 93,845.80 is: 140,601.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,397.80 : 163,902.30 = 93,845.80 : x
  2. Step 2: Convert to fraction form
    109,397.80/163,902.30 = 93,845.80/x
  3. Step 3: Cross multiply
    109,397.80x = 163,902.30 × 93,845.80
  4. Step 4: Simplify right side
    109,397.80x = 15,381,542,465.34
  5. Step 5: Solve for x
    x = 15,381,542,465.34/109,397.80
  6. Step 6: Final answer
    x = 140,601.94

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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.