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Finding the Fourth Proportional to 222,053.50, 306,433.83 and 121,451.50

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Solution

The fourth proportional to 222,053.50, 306,433.83 and 121,451.50 is: 167,603.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,053.50 : 306,433.83 = 121,451.50 : x
  2. Step 2: Convert to fraction form
    222,053.50/306,433.83 = 121,451.50/x
  3. Step 3: Cross multiply
    222,053.50x = 306,433.83 × 121,451.50
  4. Step 4: Simplify right side
    222,053.50x = 37,216,848,304.25
  5. Step 5: Solve for x
    x = 37,216,848,304.25/222,053.50
  6. Step 6: Final answer
    x = 167,603.07

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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.