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Finding the Fourth Proportional to 73,911.65, 110,739.90 and 34,387.70

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Solution

The fourth proportional to 73,911.65, 110,739.90 and 34,387.70 is: 51,522.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,911.65 : 110,739.90 = 34,387.70 : x
  2. Step 2: Convert to fraction form
    73,911.65/110,739.90 = 34,387.70/x
  3. Step 3: Cross multiply
    73,911.65x = 110,739.90 × 34,387.70
  4. Step 4: Simplify right side
    73,911.65x = 3,808,090,459.23
  5. Step 5: Solve for x
    x = 3,808,090,459.23/73,911.65
  6. Step 6: Final answer
    x = 51,522.20

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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.