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Finding the Fourth Proportional to 181,890.60, 272,835.90 and 124,809.90

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Solution

The fourth proportional to 181,890.60, 272,835.90 and 124,809.90 is: 187,214.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,890.60 : 272,835.90 = 124,809.90 : x
  2. Step 2: Convert to fraction form
    181,890.60/272,835.90 = 124,809.90/x
  3. Step 3: Cross multiply
    181,890.60x = 272,835.90 × 124,809.90
  4. Step 4: Simplify right side
    181,890.60x = 34,052,621,395.41
  5. Step 5: Solve for x
    x = 34,052,621,395.41/181,890.60
  6. Step 6: Final answer
    x = 187,214.85

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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.