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Finding the Fourth Proportional to 503,771.28, 755,631.72 and 124,689.84

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Solution

The fourth proportional to 503,771.28, 755,631.72 and 124,689.84 is: 187,028.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,771.28 : 755,631.72 = 124,689.84 : x
  2. Step 2: Convert to fraction form
    503,771.28/755,631.72 = 124,689.84/x
  3. Step 3: Cross multiply
    503,771.28x = 755,631.72 × 124,689.84
  4. Step 4: Simplify right side
    503,771.28x = 94,219,598,265.72
  5. Step 5: Solve for x
    x = 94,219,598,265.72/503,771.28
  6. Step 6: Final answer
    x = 187,028.52

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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.