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Finding the Fourth Proportional to 125,393.76, 187,958.40 and 41,131.92

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Solution

The fourth proportional to 125,393.76, 187,958.40 and 41,131.92 is: 61,654.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,393.76 : 187,958.40 = 41,131.92 : x
  2. Step 2: Convert to fraction form
    125,393.76/187,958.40 = 41,131.92/x
  3. Step 3: Cross multiply
    125,393.76x = 187,958.40 × 41,131.92
  4. Step 4: Simplify right side
    125,393.76x = 7,731,089,872.13
  5. Step 5: Solve for x
    x = 7,731,089,872.13/125,393.76
  6. Step 6: Final answer
    x = 61,654.50

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1.5x scale

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.