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Finding the Fourth Proportional to 613,326.66, 919,989.80 and 164,035.92

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Solution

The fourth proportional to 613,326.66, 919,989.80 and 164,035.92 is: 246,053.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,326.66 : 919,989.80 = 164,035.92 : x
  2. Step 2: Convert to fraction form
    613,326.66/919,989.80 = 164,035.92/x
  3. Step 3: Cross multiply
    613,326.66x = 919,989.80 × 164,035.92
  4. Step 4: Simplify right side
    613,326.66x = 150,911,373,233.62
  5. Step 5: Solve for x
    x = 150,911,373,233.62/613,326.66
  6. Step 6: Final answer
    x = 246,053.83

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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.