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Finding the Fourth Proportional to 98,244.90, 147,513.15 and 68,793.30

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Solution

The fourth proportional to 98,244.90, 147,513.15 and 68,793.30 is: 103,292.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,244.90 : 147,513.15 = 68,793.30 : x
  2. Step 2: Convert to fraction form
    98,244.90/147,513.15 = 68,793.30/x
  3. Step 3: Cross multiply
    98,244.90x = 147,513.15 × 68,793.30
  4. Step 4: Simplify right side
    98,244.90x = 10,147,916,381.90
  5. Step 5: Solve for x
    x = 10,147,916,381.90/98,244.90
  6. Step 6: Final answer
    x = 103,292.04

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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.