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Finding the Fourth Proportional to 146,151, 201,688.92 and 79,083

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Solution

The fourth proportional to 146,151, 201,688.92 and 79,083 is: 109,134.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,151 : 201,688.92 = 79,083 : x
  2. Step 2: Convert to fraction form
    146,151/201,688.92 = 79,083/x
  3. Step 3: Cross multiply
    146,151x = 201,688.92 × 79,083
  4. Step 4: Simplify right side
    146,151x = 15,950,164,860.36
  5. Step 5: Solve for x
    x = 15,950,164,860.36/146,151
  6. Step 6: Final answer
    x = 109,134.83

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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.