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Finding the Fourth Proportional to 86,908.23, 119,933.34 and 47,164.23

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Solution

The fourth proportional to 86,908.23, 119,933.34 and 47,164.23 is: 65,086.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,908.23 : 119,933.34 = 47,164.23 : x
  2. Step 2: Convert to fraction form
    86,908.23/119,933.34 = 47,164.23/x
  3. Step 3: Cross multiply
    86,908.23x = 119,933.34 × 47,164.23
  4. Step 4: Simplify right side
    86,908.23x = 5,656,563,632.43
  5. Step 5: Solve for x
    x = 5,656,563,632.43/86,908.23
  6. Step 6: Final answer
    x = 65,086.63

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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.