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Finding the Fourth Proportional to 98,069.80, 147,123.90 and 41,909.80

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Solution

The fourth proportional to 98,069.80, 147,123.90 and 41,909.80 is: 62,872.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,069.80 : 147,123.90 = 41,909.80 : x
  2. Step 2: Convert to fraction form
    98,069.80/147,123.90 = 41,909.80/x
  3. Step 3: Cross multiply
    98,069.80x = 147,123.90 × 41,909.80
  4. Step 4: Simplify right side
    98,069.80x = 6,165,933,224.22
  5. Step 5: Solve for x
    x = 6,165,933,224.22/98,069.80
  6. Step 6: Final answer
    x = 62,872.91

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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.