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Finding the Fourth Proportional to 73,320.02, 109,978.68 and 23,399.72

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Solution

The fourth proportional to 73,320.02, 109,978.68 and 23,399.72 is: 35,099.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,320.02 : 109,978.68 = 23,399.72 : x
  2. Step 2: Convert to fraction form
    73,320.02/109,978.68 = 23,399.72/x
  3. Step 3: Cross multiply
    73,320.02x = 109,978.68 × 23,399.72
  4. Step 4: Simplify right side
    73,320.02x = 2,573,470,317.97
  5. Step 5: Solve for x
    x = 2,573,470,317.97/73,320.02
  6. Step 6: Final answer
    x = 35,099.15

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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.