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Finding the Fourth Proportional to 147,479.39, 203,515.08 and 82,954.01

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Solution

The fourth proportional to 147,479.39, 203,515.08 and 82,954.01 is: 114,472.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,479.39 : 203,515.08 = 82,954.01 : x
  2. Step 2: Convert to fraction form
    147,479.39/203,515.08 = 82,954.01/x
  3. Step 3: Cross multiply
    147,479.39x = 203,515.08 × 82,954.01
  4. Step 4: Simplify right side
    147,479.39x = 16,882,391,981.47
  5. Step 5: Solve for x
    x = 16,882,391,981.47/147,479.39
  6. Step 6: Final answer
    x = 114,472.89

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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.