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Finding the Fourth Proportional to 224,456, 309,755.76 and 123,860.48

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Solution

The fourth proportional to 224,456, 309,755.76 and 123,860.48 is: 170,931.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,456 : 309,755.76 = 123,860.48 : x
  2. Step 2: Convert to fraction form
    224,456/309,755.76 = 123,860.48/x
  3. Step 3: Cross multiply
    224,456x = 309,755.76 × 123,860.48
  4. Step 4: Simplify right side
    224,456x = 38,366,497,116.36
  5. Step 5: Solve for x
    x = 38,366,497,116.36/224,456
  6. Step 6: Final answer
    x = 170,931.04

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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.