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Finding the Fourth Proportional to 453,843.18, 680,838.64 and 134,027.39

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Solution

The fourth proportional to 453,843.18, 680,838.64 and 134,027.39 is: 201,062.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,843.18 : 680,838.64 = 134,027.39 : x
  2. Step 2: Convert to fraction form
    453,843.18/680,838.64 = 134,027.39/x
  3. Step 3: Cross multiply
    453,843.18x = 680,838.64 × 134,027.39
  4. Step 4: Simplify right side
    453,843.18x = 91,251,022,526.16
  5. Step 5: Solve for x
    x = 91,251,022,526.16/453,843.18
  6. Step 6: Final answer
    x = 201,062.89

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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.