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Finding the Fourth Proportional to 299,133.96, 412,776.18 and 164,989.32

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Solution

The fourth proportional to 299,133.96, 412,776.18 and 164,989.32 is: 227,669.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,133.96 : 412,776.18 = 164,989.32 : x
  2. Step 2: Convert to fraction form
    299,133.96/412,776.18 = 164,989.32/x
  3. Step 3: Cross multiply
    299,133.96x = 412,776.18 × 164,989.32
  4. Step 4: Simplify right side
    299,133.96x = 68,103,661,250.40
  5. Step 5: Solve for x
    x = 68,103,661,250.40/299,133.96
  6. Step 6: Final answer
    x = 227,669.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.