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Finding the Fourth Proportional to 119,574.60, 165,020.43 and 65,859.59

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Solution

The fourth proportional to 119,574.60, 165,020.43 and 65,859.59 is: 90,890.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,574.60 : 165,020.43 = 65,859.59 : x
  2. Step 2: Convert to fraction form
    119,574.60/165,020.43 = 65,859.59/x
  3. Step 3: Cross multiply
    119,574.60x = 165,020.43 × 65,859.59
  4. Step 4: Simplify right side
    119,574.60x = 10,868,177,532.13
  5. Step 5: Solve for x
    x = 10,868,177,532.13/119,574.60
  6. Step 6: Final answer
    x = 90,890.36

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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.