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Finding the Fourth Proportional to 161,739.48, 242,600.92 and 61,892

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Solution

The fourth proportional to 161,739.48, 242,600.92 and 61,892 is: 92,834.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,739.48 : 242,600.92 = 61,892 : x
  2. Step 2: Convert to fraction form
    161,739.48/242,600.92 = 61,892/x
  3. Step 3: Cross multiply
    161,739.48x = 242,600.92 × 61,892
  4. Step 4: Simplify right side
    161,739.48x = 15,015,056,140.64
  5. Step 5: Solve for x
    x = 15,015,056,140.64/161,739.48
  6. Step 6: Final answer
    x = 92,834.82

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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.