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Finding the Fourth Proportional to 73,324.05, 109,986.08 and 65,013.45

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Solution

The fourth proportional to 73,324.05, 109,986.08 and 65,013.45 is: 97,520.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,324.05 : 109,986.08 = 65,013.45 : x
  2. Step 2: Convert to fraction form
    73,324.05/109,986.08 = 65,013.45/x
  3. Step 3: Cross multiply
    73,324.05x = 109,986.08 × 65,013.45
  4. Step 4: Simplify right side
    73,324.05x = 7,150,574,187.71
  5. Step 5: Solve for x
    x = 7,150,574,187.71/73,324.05
  6. Step 6: Final answer
    x = 97,520.18

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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.