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Finding the Fourth Proportional to 82,590.66, 123,885.99 and 35,842.50

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Solution

The fourth proportional to 82,590.66, 123,885.99 and 35,842.50 is: 53,763.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,590.66 : 123,885.99 = 35,842.50 : x
  2. Step 2: Convert to fraction form
    82,590.66/123,885.99 = 35,842.50/x
  3. Step 3: Cross multiply
    82,590.66x = 123,885.99 × 35,842.50
  4. Step 4: Simplify right side
    82,590.66x = 4,440,383,596.58
  5. Step 5: Solve for x
    x = 4,440,383,596.58/82,590.66
  6. Step 6: Final answer
    x = 53,763.75

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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.