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Finding the Fourth Proportional to 73,122.57, 100,908.95 and 41,290.83

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Solution

The fourth proportional to 73,122.57, 100,908.95 and 41,290.83 is: 56,981.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,122.57 : 100,908.95 = 41,290.83 : x
  2. Step 2: Convert to fraction form
    73,122.57/100,908.95 = 41,290.83/x
  3. Step 3: Cross multiply
    73,122.57x = 100,908.95 × 41,290.83
  4. Step 4: Simplify right side
    73,122.57x = 4,166,614,093.47
  5. Step 5: Solve for x
    x = 4,166,614,093.47/73,122.57
  6. Step 6: Final answer
    x = 56,981.23

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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.