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Finding the Fourth Proportional to 98,480.52, 147,798.30 and 36,168.84

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Solution

The fourth proportional to 98,480.52, 147,798.30 and 36,168.84 is: 54,281.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,480.52 : 147,798.30 = 36,168.84 : x
  2. Step 2: Convert to fraction form
    98,480.52/147,798.30 = 36,168.84/x
  3. Step 3: Cross multiply
    98,480.52x = 147,798.30 × 36,168.84
  4. Step 4: Simplify right side
    98,480.52x = 5,345,693,064.97
  5. Step 5: Solve for x
    x = 5,345,693,064.97/98,480.52
  6. Step 6: Final answer
    x = 54,281.73

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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.