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Finding the Fourth Proportional to 71,297.01, 106,869.78 and 26,904.96

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Solution

The fourth proportional to 71,297.01, 106,869.78 and 26,904.96 is: 40,328.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,297.01 : 106,869.78 = 26,904.96 : x
  2. Step 2: Convert to fraction form
    71,297.01/106,869.78 = 26,904.96/x
  3. Step 3: Cross multiply
    71,297.01x = 106,869.78 × 26,904.96
  4. Step 4: Simplify right side
    71,297.01x = 2,875,327,156.11
  5. Step 5: Solve for x
    x = 2,875,327,156.11/71,297.01
  6. Step 6: Final answer
    x = 40,328.86

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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.