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Finding the Fourth Proportional to 313,176.84, 469,781.64 and 88,553.70

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Solution

The fourth proportional to 313,176.84, 469,781.64 and 88,553.70 is: 132,835.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,176.84 : 469,781.64 = 88,553.70 : x
  2. Step 2: Convert to fraction form
    313,176.84/469,781.64 = 88,553.70/x
  3. Step 3: Cross multiply
    313,176.84x = 469,781.64 × 88,553.70
  4. Step 4: Simplify right side
    313,176.84x = 41,600,902,414.07
  5. Step 5: Solve for x
    x = 41,600,902,414.07/313,176.84
  6. Step 6: Final answer
    x = 132,835.18

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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.