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Finding the Fourth Proportional to 119,330.76, 164,680.20 and 65,619.66

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Solution

The fourth proportional to 119,330.76, 164,680.20 and 65,619.66 is: 90,557.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,330.76 : 164,680.20 = 65,619.66 : x
  2. Step 2: Convert to fraction form
    119,330.76/164,680.20 = 65,619.66/x
  3. Step 3: Cross multiply
    119,330.76x = 164,680.20 × 65,619.66
  4. Step 4: Simplify right side
    119,330.76x = 10,806,258,732.73
  5. Step 5: Solve for x
    x = 10,806,258,732.73/119,330.76
  6. Step 6: Final answer
    x = 90,557.19

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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.