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Finding the Fourth Proportional to 356,402.63, 491,836.53 and 195,260.87

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Solution

The fourth proportional to 356,402.63, 491,836.53 and 195,260.87 is: 269,460.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,402.63 : 491,836.53 = 195,260.87 : x
  2. Step 2: Convert to fraction form
    356,402.63/491,836.53 = 195,260.87/x
  3. Step 3: Cross multiply
    356,402.63x = 491,836.53 × 195,260.87
  4. Step 4: Simplify right side
    356,402.63x = 96,036,428,745.58
  5. Step 5: Solve for x
    x = 96,036,428,745.58/356,402.63
  6. Step 6: Final answer
    x = 269,460.49

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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.