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Finding the Fourth Proportional to 119,387.54, 164,759.01 and 65,676.62

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Solution

The fourth proportional to 119,387.54, 164,759.01 and 65,676.62 is: 90,636.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,387.54 : 164,759.01 = 65,676.62 : x
  2. Step 2: Convert to fraction form
    119,387.54/164,759.01 = 65,676.62/x
  3. Step 3: Cross multiply
    119,387.54x = 164,759.01 × 65,676.62
  4. Step 4: Simplify right side
    119,387.54x = 10,820,814,891.35
  5. Step 5: Solve for x
    x = 10,820,814,891.35/119,387.54
  6. Step 6: Final answer
    x = 90,636.05

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1.5x scale

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.