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Finding the Fourth Proportional to 222,298.76, 306,772.30 and 121,696.76

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Solution

The fourth proportional to 222,298.76, 306,772.30 and 121,696.76 is: 167,941.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,298.76 : 306,772.30 = 121,696.76 : x
  2. Step 2: Convert to fraction form
    222,298.76/306,772.30 = 121,696.76/x
  3. Step 3: Cross multiply
    222,298.76x = 306,772.30 × 121,696.76
  4. Step 4: Simplify right side
    222,298.76x = 37,333,194,967.75
  5. Step 5: Solve for x
    x = 37,333,194,967.75/222,298.76
  6. Step 6: Final answer
    x = 167,941.53

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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.