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Finding the Fourth Proportional to 223,297.50, 308,150.55 and 122,696.22

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Solution

The fourth proportional to 223,297.50, 308,150.55 and 122,696.22 is: 169,320.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,297.50 : 308,150.55 = 122,696.22 : x
  2. Step 2: Convert to fraction form
    223,297.50/308,150.55 = 122,696.22/x
  3. Step 3: Cross multiply
    223,297.50x = 308,150.55 × 122,696.22
  4. Step 4: Simplify right side
    223,297.50x = 37,808,907,675.92
  5. Step 5: Solve for x
    x = 37,808,907,675.92/223,297.50
  6. Step 6: Final answer
    x = 169,320.78

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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.