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Finding the Fourth Proportional to 224,810.60, 336,999.90 and 129,943.40

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Solution

The fourth proportional to 224,810.60, 336,999.90 and 129,943.40 is: 194,790.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,810.60 : 336,999.90 = 129,943.40 : x
  2. Step 2: Convert to fraction form
    224,810.60/336,999.90 = 129,943.40/x
  3. Step 3: Cross multiply
    224,810.60x = 336,999.90 × 129,943.40
  4. Step 4: Simplify right side
    224,810.60x = 43,790,912,805.66
  5. Step 5: Solve for x
    x = 43,790,912,805.66/224,810.60
  6. Step 6: Final answer
    x = 194,790.25

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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.