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Finding the Fourth Proportional to 119,299.89, 164,627.52 and 65,574.57

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Solution

The fourth proportional to 119,299.89, 164,627.52 and 65,574.57 is: 90,489.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,299.89 : 164,627.52 = 65,574.57 : x
  2. Step 2: Convert to fraction form
    119,299.89/164,627.52 = 65,574.57/x
  3. Step 3: Cross multiply
    119,299.89x = 164,627.52 × 65,574.57
  4. Step 4: Simplify right side
    119,299.89x = 10,795,378,834.17
  5. Step 5: Solve for x
    x = 10,795,378,834.17/119,299.89
  6. Step 6: Final answer
    x = 90,489.43

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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.