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Finding the Fourth Proportional to 75,189.02, 103,524.08 and 63,836.06

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Solution

The fourth proportional to 75,189.02, 103,524.08 and 63,836.06 is: 87,892.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,189.02 : 103,524.08 = 63,836.06 : x
  2. Step 2: Convert to fraction form
    75,189.02/103,524.08 = 63,836.06/x
  3. Step 3: Cross multiply
    75,189.02x = 103,524.08 × 63,836.06
  4. Step 4: Simplify right side
    75,189.02x = 6,608,569,382.32
  5. Step 5: Solve for x
    x = 6,608,569,382.32/75,189.02
  6. Step 6: Final answer
    x = 87,892.75

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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.