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Finding the Fourth Proportional to 222,810.66, 307,478.87 and 120,836.12

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Solution

The fourth proportional to 222,810.66, 307,478.87 and 120,836.12 is: 166,753.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,810.66 : 307,478.87 = 120,836.12 : x
  2. Step 2: Convert to fraction form
    222,810.66/307,478.87 = 120,836.12/x
  3. Step 3: Cross multiply
    222,810.66x = 307,478.87 × 120,836.12
  4. Step 4: Simplify right side
    222,810.66x = 37,154,551,944.34
  5. Step 5: Solve for x
    x = 37,154,551,944.34/222,810.66
  6. Step 6: Final answer
    x = 166,753.92

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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.