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Finding the Fourth Proportional to 73,422.72, 109,992.06 and 43,864.20

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Solution

The fourth proportional to 73,422.72, 109,992.06 and 43,864.20 is: 65,711.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,422.72 : 109,992.06 = 43,864.20 : x
  2. Step 2: Convert to fraction form
    73,422.72/109,992.06 = 43,864.20/x
  3. Step 3: Cross multiply
    73,422.72x = 109,992.06 × 43,864.20
  4. Step 4: Simplify right side
    73,422.72x = 4,824,713,718.25
  5. Step 5: Solve for x
    x = 4,824,713,718.25/73,422.72
  6. Step 6: Final answer
    x = 65,711.45

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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.