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Finding the Fourth Proportional to 98,895.80, 136,473.90 and 54,182.84

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Solution

The fourth proportional to 98,895.80, 136,473.90 and 54,182.84 is: 74,771.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,895.80 : 136,473.90 = 54,182.84 : x
  2. Step 2: Convert to fraction form
    98,895.80/136,473.90 = 54,182.84/x
  3. Step 3: Cross multiply
    98,895.80x = 136,473.90 × 54,182.84
  4. Step 4: Simplify right side
    98,895.80x = 7,394,543,487.88
  5. Step 5: Solve for x
    x = 7,394,543,487.88/98,895.80
  6. Step 6: Final answer
    x = 74,771.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.