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Finding the Fourth Proportional to 162,758.26, 224,606.74 and 91,138.06

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Solution

The fourth proportional to 162,758.26, 224,606.74 and 91,138.06 is: 125,770.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,758.26 : 224,606.74 = 91,138.06 : x
  2. Step 2: Convert to fraction form
    162,758.26/224,606.74 = 91,138.06/x
  3. Step 3: Cross multiply
    162,758.26x = 224,606.74 × 91,138.06
  4. Step 4: Simplify right side
    162,758.26x = 20,470,221,423.49
  5. Step 5: Solve for x
    x = 20,470,221,423.49/162,758.26
  6. Step 6: Final answer
    x = 125,770.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.