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Finding the Fourth Proportional to 200,551.61, 300,761.79 and 93,902.55

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Solution

The fourth proportional to 200,551.61, 300,761.79 and 93,902.55 is: 140,823.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,551.61 : 300,761.79 = 93,902.55 : x
  2. Step 2: Convert to fraction form
    200,551.61/300,761.79 = 93,902.55/x
  3. Step 3: Cross multiply
    200,551.61x = 300,761.79 × 93,902.55
  4. Step 4: Simplify right side
    200,551.61x = 28,242,299,023.56
  5. Step 5: Solve for x
    x = 28,242,299,023.56/200,551.61
  6. Step 6: Final answer
    x = 140,823.10

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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.