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Finding the Fourth Proportional to 73,469.40, 110,106.90 and 65,110.20

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Solution

The fourth proportional to 73,469.40, 110,106.90 and 65,110.20 is: 97,579.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,469.40 : 110,106.90 = 65,110.20 : x
  2. Step 2: Convert to fraction form
    73,469.40/110,106.90 = 65,110.20/x
  3. Step 3: Cross multiply
    73,469.40x = 110,106.90 × 65,110.20
  4. Step 4: Simplify right side
    73,469.40x = 7,169,082,280.38
  5. Step 5: Solve for x
    x = 7,169,082,280.38/73,469.40
  6. Step 6: Final answer
    x = 97,579.16

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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.