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Finding the Fourth Proportional to 224,721.20, 336,644.40 and 124,702.40

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Solution

The fourth proportional to 224,721.20, 336,644.40 and 124,702.40 is: 186,810.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,721.20 : 336,644.40 = 124,702.40 : x
  2. Step 2: Convert to fraction form
    224,721.20/336,644.40 = 124,702.40/x
  3. Step 3: Cross multiply
    224,721.20x = 336,644.40 × 124,702.40
  4. Step 4: Simplify right side
    224,721.20x = 41,980,364,626.56
  5. Step 5: Solve for x
    x = 41,980,364,626.56/224,721.20
  6. Step 6: Final answer
    x = 186,810.88

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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.