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Finding the Fourth Proportional to 101,953.49, 152,930.34 and 38,758.78

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Solution

The fourth proportional to 101,953.49, 152,930.34 and 38,758.78 is: 58,138.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,953.49 : 152,930.34 = 38,758.78 : x
  2. Step 2: Convert to fraction form
    101,953.49/152,930.34 = 38,758.78/x
  3. Step 3: Cross multiply
    101,953.49x = 152,930.34 × 38,758.78
  4. Step 4: Simplify right side
    101,953.49x = 5,927,393,021.06
  5. Step 5: Solve for x
    x = 5,927,393,021.06/101,953.49
  6. Step 6: Final answer
    x = 58,138.20

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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.