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Finding the Fourth Proportional to 222,431.52, 307,030.24 and 135,216.24

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Solution

The fourth proportional to 222,431.52, 307,030.24 and 135,216.24 is: 186,643.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,431.52 : 307,030.24 = 135,216.24 : x
  2. Step 2: Convert to fraction form
    222,431.52/307,030.24 = 135,216.24/x
  3. Step 3: Cross multiply
    222,431.52x = 307,030.24 × 135,216.24
  4. Step 4: Simplify right side
    222,431.52x = 41,515,474,619.10
  5. Step 5: Solve for x
    x = 41,515,474,619.10/222,431.52
  6. Step 6: Final answer
    x = 186,643.85

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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.