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Finding the Fourth Proportional to 158,706.33, 238,095.74 and 68,763.98

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Solution

The fourth proportional to 158,706.33, 238,095.74 and 68,763.98 is: 103,161.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,706.33 : 238,095.74 = 68,763.98 : x
  2. Step 2: Convert to fraction form
    158,706.33/238,095.74 = 68,763.98/x
  3. Step 3: Cross multiply
    158,706.33x = 238,095.74 × 68,763.98
  4. Step 4: Simplify right side
    158,706.33x = 16,372,409,169.15
  5. Step 5: Solve for x
    x = 16,372,409,169.15/158,706.33
  6. Step 6: Final answer
    x = 103,161.66

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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.