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Finding the Fourth Proportional to 73,143.40, 109,715.10 and 23,895.40

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Solution

The fourth proportional to 73,143.40, 109,715.10 and 23,895.40 is: 35,843.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,143.40 : 109,715.10 = 23,895.40 : x
  2. Step 2: Convert to fraction form
    73,143.40/109,715.10 = 23,895.40/x
  3. Step 3: Cross multiply
    73,143.40x = 109,715.10 × 23,895.40
  4. Step 4: Simplify right side
    73,143.40x = 2,621,686,200.54
  5. Step 5: Solve for x
    x = 2,621,686,200.54/73,143.40
  6. Step 6: Final answer
    x = 35,843.10

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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.