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Finding the Fourth Proportional to 93,769.50, 129,396.94 and 51,319.82

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Solution

The fourth proportional to 93,769.50, 129,396.94 and 51,319.82 is: 70,818.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,769.50 : 129,396.94 = 51,319.82 : x
  2. Step 2: Convert to fraction form
    93,769.50/129,396.94 = 51,319.82/x
  3. Step 3: Cross multiply
    93,769.50x = 129,396.94 × 51,319.82
  4. Step 4: Simplify right side
    93,769.50x = 6,640,627,669.35
  5. Step 5: Solve for x
    x = 6,640,627,669.35/93,769.50
  6. Step 6: Final answer
    x = 70,818.63

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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.