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Finding the Fourth Proportional to 93,175.20, 139,568.40 and 69,769.44

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Solution

The fourth proportional to 93,175.20, 139,568.40 and 69,769.44 is: 104,508.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,175.20 : 139,568.40 = 69,769.44 : x
  2. Step 2: Convert to fraction form
    93,175.20/139,568.40 = 69,769.44/x
  3. Step 3: Cross multiply
    93,175.20x = 139,568.40 × 69,769.44
  4. Step 4: Simplify right side
    93,175.20x = 9,737,609,109.70
  5. Step 5: Solve for x
    x = 9,737,609,109.70/93,175.20
  6. Step 6: Final answer
    x = 104,508.59

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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.