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Finding the Fourth Proportional to 158,034.68, 236,928.98 and 79,108.28

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Solution

The fourth proportional to 158,034.68, 236,928.98 and 79,108.28 is: 118,600.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,034.68 : 236,928.98 = 79,108.28 : x
  2. Step 2: Convert to fraction form
    158,034.68/236,928.98 = 79,108.28/x
  3. Step 3: Cross multiply
    158,034.68x = 236,928.98 × 79,108.28
  4. Step 4: Simplify right side
    158,034.68x = 18,743,044,089.95
  5. Step 5: Solve for x
    x = 18,743,044,089.95/158,034.68
  6. Step 6: Final answer
    x = 118,600.83

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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.