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Finding the Fourth Proportional to 127,364.70, 191,010.60 and 38,596.80

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Solution

The fourth proportional to 127,364.70, 191,010.60 and 38,596.80 is: 57,884.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,364.70 : 191,010.60 = 38,596.80 : x
  2. Step 2: Convert to fraction form
    127,364.70/191,010.60 = 38,596.80/x
  3. Step 3: Cross multiply
    127,364.70x = 191,010.60 × 38,596.80
  4. Step 4: Simplify right side
    127,364.70x = 7,372,397,926.08
  5. Step 5: Solve for x
    x = 7,372,397,926.08/127,364.70
  6. Step 6: Final answer
    x = 57,884.15

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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.