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Finding the Fourth Proportional to 357,639.38, 536,605.98 and 170,531.54

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Solution

The fourth proportional to 357,639.38, 536,605.98 and 170,531.54 is: 255,867.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,639.38 : 536,605.98 = 170,531.54 : x
  2. Step 2: Convert to fraction form
    357,639.38/536,605.98 = 170,531.54/x
  3. Step 3: Cross multiply
    357,639.38x = 536,605.98 × 170,531.54
  4. Step 4: Simplify right side
    357,639.38x = 91,508,244,142.61
  5. Step 5: Solve for x
    x = 91,508,244,142.61/357,639.38
  6. Step 6: Final answer
    x = 255,867.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.