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Finding the Fourth Proportional to 93,006.80, 128,347.76 and 50,564.96

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Solution

The fourth proportional to 93,006.80, 128,347.76 and 50,564.96 is: 69,778.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,006.80 : 128,347.76 = 50,564.96 : x
  2. Step 2: Convert to fraction form
    93,006.80/128,347.76 = 50,564.96/x
  3. Step 3: Cross multiply
    93,006.80x = 128,347.76 × 50,564.96
  4. Step 4: Simplify right side
    93,006.80x = 6,489,899,350.49
  5. Step 5: Solve for x
    x = 6,489,899,350.49/93,006.80
  6. Step 6: Final answer
    x = 69,778.76

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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.