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Finding the Fourth Proportional to 484,715.55, 727,405.46 and 169,172.46

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Solution

The fourth proportional to 484,715.55, 727,405.46 and 169,172.46 is: 253,874.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,715.55 : 727,405.46 = 169,172.46 : x
  2. Step 2: Convert to fraction form
    484,715.55/727,405.46 = 169,172.46/x
  3. Step 3: Cross multiply
    484,715.55x = 727,405.46 × 169,172.46
  4. Step 4: Simplify right side
    484,715.55x = 123,056,970,239.77
  5. Step 5: Solve for x
    x = 123,056,970,239.77/484,715.55
  6. Step 6: Final answer
    x = 253,874.61

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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.