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Finding the Fourth Proportional to 230,503, 318,094.20 and 124,519

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Solution

The fourth proportional to 230,503, 318,094.20 and 124,519 is: 171,836.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,503 : 318,094.20 = 124,519 : x
  2. Step 2: Convert to fraction form
    230,503/318,094.20 = 124,519/x
  3. Step 3: Cross multiply
    230,503x = 318,094.20 × 124,519
  4. Step 4: Simplify right side
    230,503x = 39,608,771,689.80
  5. Step 5: Solve for x
    x = 39,608,771,689.80/230,503
  6. Step 6: Final answer
    x = 171,836.25

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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.