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Finding the Fourth Proportional to 67,874.60, 102,030.60 and 48,288.80

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Solution

The fourth proportional to 67,874.60, 102,030.60 and 48,288.80 is: 72,588.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,874.60 : 102,030.60 = 48,288.80 : x
  2. Step 2: Convert to fraction form
    67,874.60/102,030.60 = 48,288.80/x
  3. Step 3: Cross multiply
    67,874.60x = 102,030.60 × 48,288.80
  4. Step 4: Simplify right side
    67,874.60x = 4,926,935,237.28
  5. Step 5: Solve for x
    x = 4,926,935,237.28/67,874.60
  6. Step 6: Final answer
    x = 72,588.79

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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.