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Finding the Fourth Proportional to 222,753.51, 307,398.53 and 120,777.95

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Solution

The fourth proportional to 222,753.51, 307,398.53 and 120,777.95 is: 166,672.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,753.51 : 307,398.53 = 120,777.95 : x
  2. Step 2: Convert to fraction form
    222,753.51/307,398.53 = 120,777.95/x
  3. Step 3: Cross multiply
    222,753.51x = 307,398.53 × 120,777.95
  4. Step 4: Simplify right side
    222,753.51x = 37,126,962,145.53
  5. Step 5: Solve for x
    x = 37,126,962,145.53/222,753.51
  6. Step 6: Final answer
    x = 166,672.85

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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.