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Finding the Fourth Proportional to 67,939.60, 102,006.60 and 48,305.20

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Solution

The fourth proportional to 67,939.60, 102,006.60 and 48,305.20 is: 72,526.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,939.60 : 102,006.60 = 48,305.20 : x
  2. Step 2: Convert to fraction form
    67,939.60/102,006.60 = 48,305.20/x
  3. Step 3: Cross multiply
    67,939.60x = 102,006.60 × 48,305.20
  4. Step 4: Simplify right side
    67,939.60x = 4,927,449,214.32
  5. Step 5: Solve for x
    x = 4,927,449,214.32/67,939.60
  6. Step 6: Final answer
    x = 72,526.91

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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.