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Finding the Fourth Proportional to 86,860.13, 119,866.97 and 47,116.13

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Solution

The fourth proportional to 86,860.13, 119,866.97 and 47,116.13 is: 65,020.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,860.13 : 119,866.97 = 47,116.13 : x
  2. Step 2: Convert to fraction form
    86,860.13/119,866.97 = 47,116.13/x
  3. Step 3: Cross multiply
    86,860.13x = 119,866.97 × 47,116.13
  4. Step 4: Simplify right side
    86,860.13x = 5,647,667,259.68
  5. Step 5: Solve for x
    x = 5,647,667,259.68/86,860.13
  6. Step 6: Final answer
    x = 65,020.25

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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.