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Finding the Fourth Proportional to 119,358.25, 164,718.53 and 65,647.33

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Solution

The fourth proportional to 119,358.25, 164,718.53 and 65,647.33 is: 90,595.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,358.25 : 164,718.53 = 65,647.33 : x
  2. Step 2: Convert to fraction form
    119,358.25/164,718.53 = 65,647.33/x
  3. Step 3: Cross multiply
    119,358.25x = 164,718.53 × 65,647.33
  4. Step 4: Simplify right side
    119,358.25x = 10,813,331,367.79
  5. Step 5: Solve for x
    x = 10,813,331,367.79/119,358.25
  6. Step 6: Final answer
    x = 90,595.59

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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.