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Finding the Fourth Proportional to 393,248.87, 589,777.45 and 108,932.03

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Solution

The fourth proportional to 393,248.87, 589,777.45 and 108,932.03 is: 163,371.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,248.87 : 589,777.45 = 108,932.03 : x
  2. Step 2: Convert to fraction form
    393,248.87/589,777.45 = 108,932.03/x
  3. Step 3: Cross multiply
    393,248.87x = 589,777.45 × 108,932.03
  4. Step 4: Simplify right side
    393,248.87x = 64,245,653,867.17
  5. Step 5: Solve for x
    x = 64,245,653,867.17/393,248.87
  6. Step 6: Final answer
    x = 163,371.49

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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.