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Finding the Fourth Proportional to 230,371.91, 345,534.49 and 61,870.34

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Solution

The fourth proportional to 230,371.91, 345,534.49 and 61,870.34 is: 92,799.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,371.91 : 345,534.49 = 61,870.34 : x
  2. Step 2: Convert to fraction form
    230,371.91/345,534.49 = 61,870.34/x
  3. Step 3: Cross multiply
    230,371.91x = 345,534.49 × 61,870.34
  4. Step 4: Simplify right side
    230,371.91x = 21,378,336,378.03
  5. Step 5: Solve for x
    x = 21,378,336,378.03/230,371.91
  6. Step 6: Final answer
    x = 92,799.23

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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.