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Finding the Fourth Proportional to 93,696.80, 129,363.96 and 55,468.68

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Solution

The fourth proportional to 93,696.80, 129,363.96 and 55,468.68 is: 76,583.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,696.80 : 129,363.96 = 55,468.68 : x
  2. Step 2: Convert to fraction form
    93,696.80/129,363.96 = 55,468.68/x
  3. Step 3: Cross multiply
    93,696.80x = 129,363.96 × 55,468.68
  4. Step 4: Simplify right side
    93,696.80x = 7,175,648,100.77
  5. Step 5: Solve for x
    x = 7,175,648,100.77/93,696.80
  6. Step 6: Final answer
    x = 76,583.71

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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.