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Finding the Fourth Proportional to 98,575.70, 147,929.16 and 36,246.20

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Solution

The fourth proportional to 98,575.70, 147,929.16 and 36,246.20 is: 54,393.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,575.70 : 147,929.16 = 36,246.20 : x
  2. Step 2: Convert to fraction form
    98,575.70/147,929.16 = 36,246.20/x
  3. Step 3: Cross multiply
    98,575.70x = 147,929.16 × 36,246.20
  4. Step 4: Simplify right side
    98,575.70x = 5,361,869,179.55
  5. Step 5: Solve for x
    x = 5,361,869,179.55/98,575.70
  6. Step 6: Final answer
    x = 54,393.42

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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.