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Finding the Fourth Proportional to 224,600.64, 336,722 and 129,722.88

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Solution

The fourth proportional to 224,600.64, 336,722 and 129,722.88 is: 194,480.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,600.64 : 336,722 = 129,722.88 : x
  2. Step 2: Convert to fraction form
    224,600.64/336,722 = 129,722.88/x
  3. Step 3: Cross multiply
    224,600.64x = 336,722 × 129,722.88
  4. Step 4: Simplify right side
    224,600.64x = 43,680,547,599.36
  5. Step 5: Solve for x
    x = 43,680,547,599.36/224,600.64
  6. Step 6: Final answer
    x = 194,480.96

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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.