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Finding the Fourth Proportional to 121,162.89, 181,773.09 and 38,056.89

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Solution

The fourth proportional to 121,162.89, 181,773.09 and 38,056.89 is: 57,094.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,162.89 : 181,773.09 = 38,056.89 : x
  2. Step 2: Convert to fraction form
    121,162.89/181,773.09 = 38,056.89/x
  3. Step 3: Cross multiply
    121,162.89x = 181,773.09 × 38,056.89
  4. Step 4: Simplify right side
    121,162.89x = 6,917,718,491.09
  5. Step 5: Solve for x
    x = 6,917,718,491.09/121,162.89
  6. Step 6: Final answer
    x = 57,094.37

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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.