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Finding the Fourth Proportional to 82,975.62, 124,475.79 and 26,805.30

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Solution

The fourth proportional to 82,975.62, 124,475.79 and 26,805.30 is: 40,211.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,975.62 : 124,475.79 = 26,805.30 : x
  2. Step 2: Convert to fraction form
    82,975.62/124,475.79 = 26,805.30/x
  3. Step 3: Cross multiply
    82,975.62x = 124,475.79 × 26,805.30
  4. Step 4: Simplify right side
    82,975.62x = 3,336,610,893.69
  5. Step 5: Solve for x
    x = 3,336,610,893.69/82,975.62
  6. Step 6: Final answer
    x = 40,211.94

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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.