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Finding the Fourth Proportional to 93,002.93, 128,338.30 and 52,164.80

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Solution

The fourth proportional to 93,002.93, 128,338.30 and 52,164.80 is: 71,984.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,002.93 : 128,338.30 = 52,164.80 : x
  2. Step 2: Convert to fraction form
    93,002.93/128,338.30 = 52,164.80/x
  3. Step 3: Cross multiply
    93,002.93x = 128,338.30 × 52,164.80
  4. Step 4: Simplify right side
    93,002.93x = 6,694,741,942.27
  5. Step 5: Solve for x
    x = 6,694,741,942.27/93,002.93
  6. Step 6: Final answer
    x = 71,984.21

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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.