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Finding the Fourth Proportional to 204,061.30, 306,091.95 and 98,890.90

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Solution

The fourth proportional to 204,061.30, 306,091.95 and 98,890.90 is: 148,336.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,061.30 : 306,091.95 = 98,890.90 : x
  2. Step 2: Convert to fraction form
    204,061.30/306,091.95 = 98,890.90/x
  3. Step 3: Cross multiply
    204,061.30x = 306,091.95 × 98,890.90
  4. Step 4: Simplify right side
    204,061.30x = 30,269,708,418.26
  5. Step 5: Solve for x
    x = 30,269,708,418.26/204,061.30
  6. Step 6: Final answer
    x = 148,336.35

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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.