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Finding the Fourth Proportional to 222,655.50, 307,265.67 and 133,231.50

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Solution

The fourth proportional to 222,655.50, 307,265.67 and 133,231.50 is: 183,860.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,655.50 : 307,265.67 = 133,231.50 : x
  2. Step 2: Convert to fraction form
    222,655.50/307,265.67 = 133,231.50/x
  3. Step 3: Cross multiply
    222,655.50x = 307,265.67 × 133,231.50
  4. Step 4: Simplify right side
    222,655.50x = 40,937,466,112.61
  5. Step 5: Solve for x
    x = 40,937,466,112.61/222,655.50
  6. Step 6: Final answer
    x = 183,860.12

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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.