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Finding the Fourth Proportional to 73,681.05, 110,598.87 and 65,301.19

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Solution

The fourth proportional to 73,681.05, 110,598.87 and 65,301.19 is: 98,020.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,681.05 : 110,598.87 = 65,301.19 : x
  2. Step 2: Convert to fraction form
    73,681.05/110,598.87 = 65,301.19/x
  3. Step 3: Cross multiply
    73,681.05x = 110,598.87 × 65,301.19
  4. Step 4: Simplify right side
    73,681.05x = 7,222,238,103.10
  5. Step 5: Solve for x
    x = 7,222,238,103.10/73,681.05
  6. Step 6: Final answer
    x = 98,020.30

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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.