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Finding the Fourth Proportional to 224,357.76, 336,536.64 and 91,310.40

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Solution

The fourth proportional to 224,357.76, 336,536.64 and 91,310.40 is: 136,965.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,357.76 : 336,536.64 = 91,310.40 : x
  2. Step 2: Convert to fraction form
    224,357.76/336,536.64 = 91,310.40/x
  3. Step 3: Cross multiply
    224,357.76x = 336,536.64 × 91,310.40
  4. Step 4: Simplify right side
    224,357.76x = 30,729,295,213.06
  5. Step 5: Solve for x
    x = 30,729,295,213.06/224,357.76
  6. Step 6: Final answer
    x = 136,965.60

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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.