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Finding the Fourth Proportional to 334,780.99, 502,172.30 and 82,062.61

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Solution

The fourth proportional to 334,780.99, 502,172.30 and 82,062.61 is: 123,094.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,780.99 : 502,172.30 = 82,062.61 : x
  2. Step 2: Convert to fraction form
    334,780.99/502,172.30 = 82,062.61/x
  3. Step 3: Cross multiply
    334,780.99x = 502,172.30 × 82,062.61
  4. Step 4: Simplify right side
    334,780.99x = 41,209,569,607.70
  5. Step 5: Solve for x
    x = 41,209,569,607.70/334,780.99
  6. Step 6: Final answer
    x = 123,094.11

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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.