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Finding the Fourth Proportional to 325,362.68, 487,862.96 and 100,660.58

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Solution

The fourth proportional to 325,362.68, 487,862.96 and 100,660.58 is: 150,934.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,362.68 : 487,862.96 = 100,660.58 : x
  2. Step 2: Convert to fraction form
    325,362.68/487,862.96 = 100,660.58/x
  3. Step 3: Cross multiply
    325,362.68x = 487,862.96 × 100,660.58
  4. Step 4: Simplify right side
    325,362.68x = 49,108,565,571.50
  5. Step 5: Solve for x
    x = 49,108,565,571.50/325,362.68
  6. Step 6: Final answer
    x = 150,934.85

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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.