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Finding the Fourth Proportional to 224,729.20, 336,656.40 and 124,710.40

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Solution

The fourth proportional to 224,729.20, 336,656.40 and 124,710.40 is: 186,822.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,729.20 : 336,656.40 = 124,710.40 : x
  2. Step 2: Convert to fraction form
    224,729.20/336,656.40 = 124,710.40/x
  3. Step 3: Cross multiply
    224,729.20x = 336,656.40 × 124,710.40
  4. Step 4: Simplify right side
    224,729.20x = 41,984,554,306.56
  5. Step 5: Solve for x
    x = 41,984,554,306.56/224,729.20
  6. Step 6: Final answer
    x = 186,822.87

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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.