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Finding the Fourth Proportional to 613,228.01, 919,771.92 and 163,983.90

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Solution

The fourth proportional to 613,228.01, 919,771.92 and 163,983.90 is: 245,957.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,228.01 : 919,771.92 = 163,983.90 : x
  2. Step 2: Convert to fraction form
    613,228.01/919,771.92 = 163,983.90/x
  3. Step 3: Cross multiply
    613,228.01x = 919,771.92 × 163,983.90
  4. Step 4: Simplify right side
    613,228.01x = 150,827,786,552.09
  5. Step 5: Solve for x
    x = 150,827,786,552.09/613,228.01
  6. Step 6: Final answer
    x = 245,957.11

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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.