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Finding the Fourth Proportional to 73,070.19, 100,819.42 and 50,401.94

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Solution

The fourth proportional to 73,070.19, 100,819.42 and 50,401.94 is: 69,542.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,070.19 : 100,819.42 = 50,401.94 : x
  2. Step 2: Convert to fraction form
    73,070.19/100,819.42 = 50,401.94/x
  3. Step 3: Cross multiply
    73,070.19x = 100,819.42 × 50,401.94
  4. Step 4: Simplify right side
    73,070.19x = 5,081,493,727.57
  5. Step 5: Solve for x
    x = 5,081,493,727.57/73,070.19
  6. Step 6: Final answer
    x = 69,542.64

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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.