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Finding the Fourth Proportional to 334,779.99, 502,170.80 and 82,061.61

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Solution

The fourth proportional to 334,779.99, 502,170.80 and 82,061.61 is: 123,092.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,779.99 : 502,170.80 = 82,061.61 : x
  2. Step 2: Convert to fraction form
    334,779.99/502,170.80 = 82,061.61/x
  3. Step 3: Cross multiply
    334,779.99x = 502,170.80 × 82,061.61
  4. Step 4: Simplify right side
    334,779.99x = 41,208,943,932.68
  5. Step 5: Solve for x
    x = 41,208,943,932.68/334,779.99
  6. Step 6: Final answer
    x = 123,092.61

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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.