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Finding the Fourth Proportional to 222,647.11, 333,182.32 and 138,446.93

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Solution

The fourth proportional to 222,647.11, 333,182.32 and 138,446.93 is: 207,180.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,647.11 : 333,182.32 = 138,446.93 : x
  2. Step 2: Convert to fraction form
    222,647.11/333,182.32 = 138,446.93/x
  3. Step 3: Cross multiply
    222,647.11x = 333,182.32 × 138,446.93
  4. Step 4: Simplify right side
    222,647.11x = 46,128,069,821.12
  5. Step 5: Solve for x
    x = 46,128,069,821.12/222,647.11
  6. Step 6: Final answer
    x = 207,180.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.