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Finding the Fourth Proportional to 222,038.12, 306,039.40 and 168,305.96

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Solution

The fourth proportional to 222,038.12, 306,039.40 and 168,305.96 is: 231,979.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,038.12 : 306,039.40 = 168,305.96 : x
  2. Step 2: Convert to fraction form
    222,038.12/306,039.40 = 168,305.96/x
  3. Step 3: Cross multiply
    222,038.12x = 306,039.40 × 168,305.96
  4. Step 4: Simplify right side
    222,038.12x = 51,508,255,014.82
  5. Step 5: Solve for x
    x = 51,508,255,014.82/222,038.12
  6. Step 6: Final answer
    x = 231,979.33

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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.