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Finding the Fourth Proportional to 357,115.91, 492,825.99 and 195,985.95

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Solution

The fourth proportional to 357,115.91, 492,825.99 and 195,985.95 is: 270,463.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,115.91 : 492,825.99 = 195,985.95 : x
  2. Step 2: Convert to fraction form
    357,115.91/492,825.99 = 195,985.95/x
  3. Step 3: Cross multiply
    357,115.91x = 492,825.99 × 195,985.95
  4. Step 4: Simplify right side
    357,115.91x = 96,586,969,834.84
  5. Step 5: Solve for x
    x = 96,586,969,834.84/357,115.91
  6. Step 6: Final answer
    x = 270,463.93

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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.