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Finding the Fourth Proportional to 117,960.84, 162,841.68 and 75,543.84

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Solution

The fourth proportional to 117,960.84, 162,841.68 and 75,543.84 is: 104,286.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,960.84 : 162,841.68 = 75,543.84 : x
  2. Step 2: Convert to fraction form
    117,960.84/162,841.68 = 75,543.84/x
  3. Step 3: Cross multiply
    117,960.84x = 162,841.68 × 75,543.84
  4. Step 4: Simplify right side
    117,960.84x = 12,301,685,819.25
  5. Step 5: Solve for x
    x = 12,301,685,819.25/117,960.84
  6. Step 6: Final answer
    x = 104,286.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.