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Finding the Fourth Proportional to 216,754.18, 324,710.61 and 159,724.60

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Solution

The fourth proportional to 216,754.18, 324,710.61 and 159,724.60 is: 239,276.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,754.18 : 324,710.61 = 159,724.60 : x
  2. Step 2: Convert to fraction form
    216,754.18/324,710.61 = 159,724.60/x
  3. Step 3: Cross multiply
    216,754.18x = 324,710.61 × 159,724.60
  4. Step 4: Simplify right side
    216,754.18x = 51,864,272,298.01
  5. Step 5: Solve for x
    x = 51,864,272,298.01/216,754.18
  6. Step 6: Final answer
    x = 239,276.92

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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.