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Finding the Fourth Proportional to 70,220.83, 105,309.82 and 36,922.83

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Solution

The fourth proportional to 70,220.83, 105,309.82 and 36,922.83 is: 55,372.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,220.83 : 105,309.82 = 36,922.83 : x
  2. Step 2: Convert to fraction form
    70,220.83/105,309.82 = 36,922.83/x
  3. Step 3: Cross multiply
    70,220.83x = 105,309.82 × 36,922.83
  4. Step 4: Simplify right side
    70,220.83x = 3,888,336,581.19
  5. Step 5: Solve for x
    x = 3,888,336,581.19/70,220.83
  6. Step 6: Final answer
    x = 55,372.98

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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.