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Finding the Fourth Proportional to 224,443.47, 336,720.69 and 66,671.67

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Solution

The fourth proportional to 224,443.47, 336,720.69 and 66,671.67 is: 100,023.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,443.47 : 336,720.69 = 66,671.67 : x
  2. Step 2: Convert to fraction form
    224,443.47/336,720.69 = 66,671.67/x
  3. Step 3: Cross multiply
    224,443.47x = 336,720.69 × 66,671.67
  4. Step 4: Simplify right side
    224,443.47x = 22,449,730,725.85
  5. Step 5: Solve for x
    x = 22,449,730,725.85/224,443.47
  6. Step 6: Final answer
    x = 100,023.99

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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.