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Finding the Fourth Proportional to 181,669.82, 272,504.82 and 86,877.60

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Solution

The fourth proportional to 181,669.82, 272,504.82 and 86,877.60 is: 130,316.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,669.82 : 272,504.82 = 86,877.60 : x
  2. Step 2: Convert to fraction form
    181,669.82/272,504.82 = 86,877.60/x
  3. Step 3: Cross multiply
    181,669.82x = 272,504.82 × 86,877.60
  4. Step 4: Simplify right side
    181,669.82x = 23,674,564,750.03
  5. Step 5: Solve for x
    x = 23,674,564,750.03/181,669.82
  6. Step 6: Final answer
    x = 130,316.44

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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.