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Finding the Fourth Proportional to 181,990.80, 272,986.20 and 93,214.80

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Solution

The fourth proportional to 181,990.80, 272,986.20 and 93,214.80 is: 139,822.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,990.80 : 272,986.20 = 93,214.80 : x
  2. Step 2: Convert to fraction form
    181,990.80/272,986.20 = 93,214.80/x
  3. Step 3: Cross multiply
    181,990.80x = 272,986.20 × 93,214.80
  4. Step 4: Simplify right side
    181,990.80x = 25,446,354,035.76
  5. Step 5: Solve for x
    x = 25,446,354,035.76/181,990.80
  6. Step 6: Final answer
    x = 139,822.20

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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.