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Finding the Fourth Proportional to 73,023.90, 109,313.96 and 65,199.90

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Solution

The fourth proportional to 73,023.90, 109,313.96 and 65,199.90 is: 97,601.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,023.90 : 109,313.96 = 65,199.90 : x
  2. Step 2: Convert to fraction form
    73,023.90/109,313.96 = 65,199.90/x
  3. Step 3: Cross multiply
    73,023.90x = 109,313.96 × 65,199.90
  4. Step 4: Simplify right side
    73,023.90x = 7,127,259,344.53
  5. Step 5: Solve for x
    x = 7,127,259,344.53/73,023.90
  6. Step 6: Final answer
    x = 97,601.74

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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.