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Finding the Fourth Proportional to 137,351.96, 206,256.54 and 92,660.96

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Solution

The fourth proportional to 137,351.96, 206,256.54 and 92,660.96 is: 139,145.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,351.96 : 206,256.54 = 92,660.96 : x
  2. Step 2: Convert to fraction form
    137,351.96/206,256.54 = 92,660.96/x
  3. Step 3: Cross multiply
    137,351.96x = 206,256.54 × 92,660.96
  4. Step 4: Simplify right side
    137,351.96x = 19,111,927,971.40
  5. Step 5: Solve for x
    x = 19,111,927,971.40/137,351.96
  6. Step 6: Final answer
    x = 139,145.66

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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.