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Finding the Fourth Proportional to 170,540.71, 255,810.88 and 58,211.61

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Solution

The fourth proportional to 170,540.71, 255,810.88 and 58,211.61 is: 87,317.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,540.71 : 255,810.88 = 58,211.61 : x
  2. Step 2: Convert to fraction form
    170,540.71/255,810.88 = 58,211.61/x
  3. Step 3: Cross multiply
    170,540.71x = 255,810.88 × 58,211.61
  4. Step 4: Simplify right side
    170,540.71x = 14,891,163,180.32
  5. Step 5: Solve for x
    x = 14,891,163,180.32/170,540.71
  6. Step 6: Final answer
    x = 87,317.35

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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.