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Finding the Fourth Proportional to 222,333.80, 306,820.32 and 120,358.76

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Solution

The fourth proportional to 222,333.80, 306,820.32 and 120,358.76 is: 166,094.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,333.80 : 306,820.32 = 120,358.76 : x
  2. Step 2: Convert to fraction form
    222,333.80/306,820.32 = 120,358.76/x
  3. Step 3: Cross multiply
    222,333.80x = 306,820.32 × 120,358.76
  4. Step 4: Simplify right side
    222,333.80x = 36,928,513,258.00
  5. Step 5: Solve for x
    x = 36,928,513,258.00/222,333.80
  6. Step 6: Final answer
    x = 166,094.91

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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.