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Finding the Fourth Proportional to 222,221.56, 333,263.20 and 74,443

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Solution

The fourth proportional to 222,221.56, 333,263.20 and 74,443 is: 111,641.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,221.56 : 333,263.20 = 74,443 : x
  2. Step 2: Convert to fraction form
    222,221.56/333,263.20 = 74,443/x
  3. Step 3: Cross multiply
    222,221.56x = 333,263.20 × 74,443
  4. Step 4: Simplify right side
    222,221.56x = 24,809,112,397.60
  5. Step 5: Solve for x
    x = 24,809,112,397.60/222,221.56
  6. Step 6: Final answer
    x = 111,641.34

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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.