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Finding the Fourth Proportional to 93,309.80, 128,767.41 and 50,868.32

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Solution

The fourth proportional to 93,309.80, 128,767.41 and 50,868.32 is: 70,198.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,309.80 : 128,767.41 = 50,868.32 : x
  2. Step 2: Convert to fraction form
    93,309.80/128,767.41 = 50,868.32/x
  3. Step 3: Cross multiply
    93,309.80x = 128,767.41 × 50,868.32
  4. Step 4: Simplify right side
    93,309.80x = 6,550,181,173.61
  5. Step 5: Solve for x
    x = 6,550,181,173.61/93,309.80
  6. Step 6: Final answer
    x = 70,198.22

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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.