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Finding the Fourth Proportional to 86,858.13, 119,864.22 and 47,114.13

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Solution

The fourth proportional to 86,858.13, 119,864.22 and 47,114.13 is: 65,017.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,858.13 : 119,864.22 = 47,114.13 : x
  2. Step 2: Convert to fraction form
    86,858.13/119,864.22 = 47,114.13/x
  3. Step 3: Cross multiply
    86,858.13x = 119,864.22 × 47,114.13
  4. Step 4: Simplify right side
    86,858.13x = 5,647,298,443.43
  5. Step 5: Solve for x
    x = 5,647,298,443.43/86,858.13
  6. Step 6: Final answer
    x = 65,017.50

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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.