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Finding the Fourth Proportional to 224,668.80, 336,772.80 and 131,126.40

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Solution

The fourth proportional to 224,668.80, 336,772.80 and 131,126.40 is: 196,555.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,668.80 : 336,772.80 = 131,126.40 : x
  2. Step 2: Convert to fraction form
    224,668.80/336,772.80 = 131,126.40/x
  3. Step 3: Cross multiply
    224,668.80x = 336,772.80 × 131,126.40
  4. Step 4: Simplify right side
    224,668.80x = 44,159,804,881.92
  5. Step 5: Solve for x
    x = 44,159,804,881.92/224,668.80
  6. Step 6: Final answer
    x = 196,555.13

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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.