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Finding the Fourth Proportional to 224,721.70, 336,645.15 and 124,702.90

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Solution

The fourth proportional to 224,721.70, 336,645.15 and 124,702.90 is: 186,811.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,721.70 : 336,645.15 = 124,702.90 : x
  2. Step 2: Convert to fraction form
    224,721.70/336,645.15 = 124,702.90/x
  3. Step 3: Cross multiply
    224,721.70x = 336,645.15 × 124,702.90
  4. Step 4: Simplify right side
    224,721.70x = 41,980,626,475.94
  5. Step 5: Solve for x
    x = 41,980,626,475.94/224,721.70
  6. Step 6: Final answer
    x = 186,811.63

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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.