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Finding the Fourth Proportional to 188,034.01, 259,490.99 and 103,151.07

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Solution

The fourth proportional to 188,034.01, 259,490.99 and 103,151.07 is: 142,350.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,034.01 : 259,490.99 = 103,151.07 : x
  2. Step 2: Convert to fraction form
    188,034.01/259,490.99 = 103,151.07/x
  3. Step 3: Cross multiply
    188,034.01x = 259,490.99 × 103,151.07
  4. Step 4: Simplify right side
    188,034.01x = 26,766,773,531.74
  5. Step 5: Solve for x
    x = 26,766,773,531.74/188,034.01
  6. Step 6: Final answer
    x = 142,350.71

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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.