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Finding the Fourth Proportional to 356,187.78, 491,539.95 and 192,846.06

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Solution

The fourth proportional to 356,187.78, 491,539.95 and 192,846.06 is: 266,128.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,187.78 : 491,539.95 = 192,846.06 : x
  2. Step 2: Convert to fraction form
    356,187.78/491,539.95 = 192,846.06/x
  3. Step 3: Cross multiply
    356,187.78x = 491,539.95 × 192,846.06
  4. Step 4: Simplify right side
    356,187.78x = 94,791,542,690.10
  5. Step 5: Solve for x
    x = 94,791,542,690.10/356,187.78
  6. Step 6: Final answer
    x = 266,128.00

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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.