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Finding the Fourth Proportional to 356,809.59, 492,403.95 and 195,654.96

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Solution

The fourth proportional to 356,809.59, 492,403.95 and 195,654.96 is: 270,007.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,809.59 : 492,403.95 = 195,654.96 : x
  2. Step 2: Convert to fraction form
    356,809.59/492,403.95 = 195,654.96/x
  3. Step 3: Cross multiply
    356,809.59x = 492,403.95 × 195,654.96
  4. Step 4: Simplify right side
    356,809.59x = 96,341,275,141.09
  5. Step 5: Solve for x
    x = 96,341,275,141.09/356,809.59
  6. Step 6: Final answer
    x = 270,007.53

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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.