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Finding the Fourth Proportional to 188,029.67, 259,484.45 and 115,396.14

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Solution

The fourth proportional to 188,029.67, 259,484.45 and 115,396.14 is: 159,248.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,029.67 : 259,484.45 = 115,396.14 : x
  2. Step 2: Convert to fraction form
    188,029.67/259,484.45 = 115,396.14/x
  3. Step 3: Cross multiply
    188,029.67x = 259,484.45 × 115,396.14
  4. Step 4: Simplify right side
    188,029.67x = 29,943,503,343.04
  5. Step 5: Solve for x
    x = 29,943,503,343.04/188,029.67
  6. Step 6: Final answer
    x = 159,248.83

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1.5x scale

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.