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Finding the Fourth Proportional to 73,578.20, 101,536.98 and 40,044.20

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Solution

The fourth proportional to 73,578.20, 101,536.98 and 40,044.20 is: 55,260.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,578.20 : 101,536.98 = 40,044.20 : x
  2. Step 2: Convert to fraction form
    73,578.20/101,536.98 = 40,044.20/x
  3. Step 3: Cross multiply
    73,578.20x = 101,536.98 × 40,044.20
  4. Step 4: Simplify right side
    73,578.20x = 4,065,967,134.52
  5. Step 5: Solve for x
    x = 4,065,967,134.52/73,578.20
  6. Step 6: Final answer
    x = 55,260.49

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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.