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Finding the Fourth Proportional to 119,036.67, 178,487.30 and 92,009.43

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Solution

The fourth proportional to 119,036.67, 178,487.30 and 92,009.43 is: 137,961.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,036.67 : 178,487.30 = 92,009.43 : x
  2. Step 2: Convert to fraction form
    119,036.67/178,487.30 = 92,009.43/x
  3. Step 3: Cross multiply
    119,036.67x = 178,487.30 × 92,009.43
  4. Step 4: Simplify right side
    119,036.67x = 16,422,514,275.19
  5. Step 5: Solve for x
    x = 16,422,514,275.19/119,036.67
  6. Step 6: Final answer
    x = 137,961.81

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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.