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Finding the Fourth Proportional to 365,410.81, 548,094.34 and 99,165.43

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Solution

The fourth proportional to 365,410.81, 548,094.34 and 99,165.43 is: 148,742.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,410.81 : 548,094.34 = 99,165.43 : x
  2. Step 2: Convert to fraction form
    365,410.81/548,094.34 = 99,165.43/x
  3. Step 3: Cross multiply
    365,410.81x = 548,094.34 × 99,165.43
  4. Step 4: Simplify right side
    365,410.81x = 54,352,007,918.28
  5. Step 5: Solve for x
    x = 54,352,007,918.28/365,410.81
  6. Step 6: Final answer
    x = 148,742.20

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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.