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Finding the Fourth Proportional to 99,350.99, 137,105.29 and 54,029.41

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Solution

The fourth proportional to 99,350.99, 137,105.29 and 54,029.41 is: 74,561.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,350.99 : 137,105.29 = 54,029.41 : x
  2. Step 2: Convert to fraction form
    99,350.99/137,105.29 = 54,029.41/x
  3. Step 3: Cross multiply
    99,350.99x = 137,105.29 × 54,029.41
  4. Step 4: Simplify right side
    99,350.99x = 7,407,717,926.58
  5. Step 5: Solve for x
    x = 7,407,717,926.58/99,350.99
  6. Step 6: Final answer
    x = 74,561.09

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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.