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Finding the Fourth Proportional to 67,871.60, 102,026.10 and 48,285.80

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Solution

The fourth proportional to 67,871.60, 102,026.10 and 48,285.80 is: 72,584.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,871.60 : 102,026.10 = 48,285.80 : x
  2. Step 2: Convert to fraction form
    67,871.60/102,026.10 = 48,285.80/x
  3. Step 3: Cross multiply
    67,871.60x = 102,026.10 × 48,285.80
  4. Step 4: Simplify right side
    67,871.60x = 4,926,411,859.38
  5. Step 5: Solve for x
    x = 4,926,411,859.38/67,871.60
  6. Step 6: Final answer
    x = 72,584.29

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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.