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Finding the Fourth Proportional to 181,858.75, 272,788.13 and 55,499.64

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Solution

The fourth proportional to 181,858.75, 272,788.13 and 55,499.64 is: 83,249.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,858.75 : 272,788.13 = 55,499.64 : x
  2. Step 2: Convert to fraction form
    181,858.75/272,788.13 = 55,499.64/x
  3. Step 3: Cross multiply
    181,858.75x = 272,788.13 × 55,499.64
  4. Step 4: Simplify right side
    181,858.75x = 15,139,643,011.27
  5. Step 5: Solve for x
    x = 15,139,643,011.27/181,858.75
  6. Step 6: Final answer
    x = 83,249.46

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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.