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Finding the Fourth Proportional to 119,374.28, 164,736.40 and 65,660.12

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Solution

The fourth proportional to 119,374.28, 164,736.40 and 65,660.12 is: 90,610.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,374.28 : 164,736.40 = 65,660.12 : x
  2. Step 2: Convert to fraction form
    119,374.28/164,736.40 = 65,660.12/x
  3. Step 3: Cross multiply
    119,374.28x = 164,736.40 × 65,660.12
  4. Step 4: Simplify right side
    119,374.28x = 10,816,611,792.37
  5. Step 5: Solve for x
    x = 10,816,611,792.37/119,374.28
  6. Step 6: Final answer
    x = 90,610.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.