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Finding the Fourth Proportional to 98,269.80, 147,318.30 and 58,842.60

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Solution

The fourth proportional to 98,269.80, 147,318.30 and 58,842.60 is: 88,212.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,269.80 : 147,318.30 = 58,842.60 : x
  2. Step 2: Convert to fraction form
    98,269.80/147,318.30 = 58,842.60/x
  3. Step 3: Cross multiply
    98,269.80x = 147,318.30 × 58,842.60
  4. Step 4: Simplify right side
    98,269.80x = 8,668,591,799.58
  5. Step 5: Solve for x
    x = 8,668,591,799.58/98,269.80
  6. Step 6: Final answer
    x = 88,212.16

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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.