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Finding the Fourth Proportional to 88,253.81, 121,791.49 and 47,967.56

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Solution

The fourth proportional to 88,253.81, 121,791.49 and 47,967.56 is: 66,195.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,253.81 : 121,791.49 = 47,967.56 : x
  2. Step 2: Convert to fraction form
    88,253.81/121,791.49 = 47,967.56/x
  3. Step 3: Cross multiply
    88,253.81x = 121,791.49 × 47,967.56
  4. Step 4: Simplify right side
    88,253.81x = 5,842,039,995.11
  5. Step 5: Solve for x
    x = 5,842,039,995.11/88,253.81
  6. Step 6: Final answer
    x = 66,195.90

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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.