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Finding the Fourth Proportional to 119,581.02, 165,029.29 and 65,866.02

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Solution

The fourth proportional to 119,581.02, 165,029.29 and 65,866.02 is: 90,899.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,581.02 : 165,029.29 = 65,866.02 : x
  2. Step 2: Convert to fraction form
    119,581.02/165,029.29 = 65,866.02/x
  3. Step 3: Cross multiply
    119,581.02x = 165,029.29 × 65,866.02
  4. Step 4: Simplify right side
    119,581.02x = 10,869,822,515.73
  5. Step 5: Solve for x
    x = 10,869,822,515.73/119,581.02
  6. Step 6: Final answer
    x = 90,899.23

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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.