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Finding the Fourth Proportional to 222,591.78, 307,187.64 and 124,488.50

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Solution

The fourth proportional to 222,591.78, 307,187.64 and 124,488.50 is: 171,800.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,591.78 : 307,187.64 = 124,488.50 : x
  2. Step 2: Convert to fraction form
    222,591.78/307,187.64 = 124,488.50/x
  3. Step 3: Cross multiply
    222,591.78x = 307,187.64 × 124,488.50
  4. Step 4: Simplify right side
    222,591.78x = 38,241,326,986.20
  5. Step 5: Solve for x
    x = 38,241,326,986.20/222,591.78
  6. Step 6: Final answer
    x = 171,800.27

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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.