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Finding the Fourth Proportional to 503,175.62, 754,678.68 and 143,321.17

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Solution

The fourth proportional to 503,175.62, 754,678.68 and 143,321.17 is: 214,957.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,175.62 : 754,678.68 = 143,321.17 : x
  2. Step 2: Convert to fraction form
    503,175.62/754,678.68 = 143,321.17/x
  3. Step 3: Cross multiply
    503,175.62x = 754,678.68 × 143,321.17
  4. Step 4: Simplify right side
    503,175.62x = 108,161,430,382.53
  5. Step 5: Solve for x
    x = 108,161,430,382.53/503,175.62
  6. Step 6: Final answer
    x = 214,957.61

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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.