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Finding the Fourth Proportional to 171,639.59, 257,396.18 and 59,290.97

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Solution

The fourth proportional to 171,639.59, 257,396.18 and 59,290.97 is: 88,914.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,639.59 : 257,396.18 = 59,290.97 : x
  2. Step 2: Convert to fraction form
    171,639.59/257,396.18 = 59,290.97/x
  3. Step 3: Cross multiply
    171,639.59x = 257,396.18 × 59,290.97
  4. Step 4: Simplify right side
    171,639.59x = 15,261,267,603.06
  5. Step 5: Solve for x
    x = 15,261,267,603.06/171,639.59
  6. Step 6: Final answer
    x = 88,914.61

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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.