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Finding the Fourth Proportional to 188,353.51, 259,996.08 and 124,711.81

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Solution

The fourth proportional to 188,353.51, 259,996.08 and 124,711.81 is: 172,147.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,353.51 : 259,996.08 = 124,711.81 : x
  2. Step 2: Convert to fraction form
    188,353.51/259,996.08 = 124,711.81/x
  3. Step 3: Cross multiply
    188,353.51x = 259,996.08 × 124,711.81
  4. Step 4: Simplify right side
    188,353.51x = 32,424,581,729.70
  5. Step 5: Solve for x
    x = 32,424,581,729.70/188,353.51
  6. Step 6: Final answer
    x = 172,147.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.