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Finding the Fourth Proportional to 119,665.69, 179,519.84 and 39,708.46

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Solution

The fourth proportional to 119,665.69, 179,519.84 and 39,708.46 is: 59,569.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,665.69 : 179,519.84 = 39,708.46 : x
  2. Step 2: Convert to fraction form
    119,665.69/179,519.84 = 39,708.46/x
  3. Step 3: Cross multiply
    119,665.69x = 179,519.84 × 39,708.46
  4. Step 4: Simplify right side
    119,665.69x = 7,128,456,154.02
  5. Step 5: Solve for x
    x = 7,128,456,154.02/119,665.69
  6. Step 6: Final answer
    x = 59,569.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.