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Finding the Fourth Proportional to 222,646.59, 333,181.53 and 138,446.40

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Solution

The fourth proportional to 222,646.59, 333,181.53 and 138,446.40 is: 207,179.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,646.59 : 333,181.53 = 138,446.40 : x
  2. Step 2: Convert to fraction form
    222,646.59/333,181.53 = 138,446.40/x
  3. Step 3: Cross multiply
    222,646.59x = 333,181.53 × 138,446.40
  4. Step 4: Simplify right side
    222,646.59x = 46,127,783,374.99
  5. Step 5: Solve for x
    x = 46,127,783,374.99/222,646.59
  6. Step 6: Final answer
    x = 207,179.38

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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.