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Finding the Fourth Proportional to 74,132.40, 110,935.96 and 65,384.40

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Solution

The fourth proportional to 74,132.40, 110,935.96 and 65,384.40 is: 97,844.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,132.40 : 110,935.96 = 65,384.40 : x
  2. Step 2: Convert to fraction form
    74,132.40/110,935.96 = 65,384.40/x
  3. Step 3: Cross multiply
    74,132.40x = 110,935.96 × 65,384.40
  4. Step 4: Simplify right side
    74,132.40x = 7,253,481,183.02
  5. Step 5: Solve for x
    x = 7,253,481,183.02/74,132.40
  6. Step 6: Final answer
    x = 97,844.95

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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.