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Finding the Fourth Proportional to 118,990.67, 178,502.70 and 34,757.01

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Solution

The fourth proportional to 118,990.67, 178,502.70 and 34,757.01 is: 52,140.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,990.67 : 178,502.70 = 34,757.01 : x
  2. Step 2: Convert to fraction form
    118,990.67/178,502.70 = 34,757.01/x
  3. Step 3: Cross multiply
    118,990.67x = 178,502.70 × 34,757.01
  4. Step 4: Simplify right side
    118,990.67x = 6,204,220,128.93
  5. Step 5: Solve for x
    x = 6,204,220,128.93/118,990.67
  6. Step 6: Final answer
    x = 52,140.39

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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.