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Finding the Fourth Proportional to 123,873.64, 185,747.58 and 52,768.80

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Solution

The fourth proportional to 123,873.64, 185,747.58 and 52,768.80 is: 79,126.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,873.64 : 185,747.58 = 52,768.80 : x
  2. Step 2: Convert to fraction form
    123,873.64/185,747.58 = 52,768.80/x
  3. Step 3: Cross multiply
    123,873.64x = 185,747.58 × 52,768.80
  4. Step 4: Simplify right side
    123,873.64x = 9,801,676,899.50
  5. Step 5: Solve for x
    x = 9,801,676,899.50/123,873.64
  6. Step 6: Final answer
    x = 79,126.42

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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.