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Finding the Fourth Proportional to 158,740.56, 238,266.36 and 75,692.88

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Solution

The fourth proportional to 158,740.56, 238,266.36 and 75,692.88 is: 113,613.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,740.56 : 238,266.36 = 75,692.88 : x
  2. Step 2: Convert to fraction form
    158,740.56/238,266.36 = 75,692.88/x
  3. Step 3: Cross multiply
    158,740.56x = 238,266.36 × 75,692.88
  4. Step 4: Simplify right side
    158,740.56x = 18,035,066,995.52
  5. Step 5: Solve for x
    x = 18,035,066,995.52/158,740.56
  6. Step 6: Final answer
    x = 113,613.48

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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.