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Finding the Fourth Proportional to 224,084, 336,007.20 and 66,290.72

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Solution

The fourth proportional to 224,084, 336,007.20 and 66,290.72 is: 99,400.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,084 : 336,007.20 = 66,290.72 : x
  2. Step 2: Convert to fraction form
    224,084/336,007.20 = 66,290.72/x
  3. Step 3: Cross multiply
    224,084x = 336,007.20 × 66,290.72
  4. Step 4: Simplify right side
    224,084x = 22,274,159,213.18
  5. Step 5: Solve for x
    x = 22,274,159,213.18/224,084
  6. Step 6: Final answer
    x = 99,400.94

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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.