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Finding the Fourth Proportional to 356,789.75, 492,384.80 and 195,651.01

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Solution

The fourth proportional to 356,789.75, 492,384.80 and 195,651.01 is: 270,006.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,789.75 : 492,384.80 = 195,651.01 : x
  2. Step 2: Convert to fraction form
    356,789.75/492,384.80 = 195,651.01/x
  3. Step 3: Cross multiply
    356,789.75x = 492,384.80 × 195,651.01
  4. Step 4: Simplify right side
    356,789.75x = 96,335,579,988.47
  5. Step 5: Solve for x
    x = 96,335,579,988.47/356,789.75
  6. Step 6: Final answer
    x = 270,006.58

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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.