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Finding the Fourth Proportional to 73,240.30, 109,811.13 and 26,487.10

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Solution

The fourth proportional to 73,240.30, 109,811.13 and 26,487.10 is: 39,712.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,240.30 : 109,811.13 = 26,487.10 : x
  2. Step 2: Convert to fraction form
    73,240.30/109,811.13 = 26,487.10/x
  3. Step 3: Cross multiply
    73,240.30x = 109,811.13 × 26,487.10
  4. Step 4: Simplify right side
    73,240.30x = 2,908,578,381.42
  5. Step 5: Solve for x
    x = 2,908,578,381.42/73,240.30
  6. Step 6: Final answer
    x = 39,712.81

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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.