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Finding the Fourth Proportional to 73,283.52, 109,839.60 and 64,979.52

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Solution

The fourth proportional to 73,283.52, 109,839.60 and 64,979.52 is: 97,393.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,283.52 : 109,839.60 = 64,979.52 : x
  2. Step 2: Convert to fraction form
    73,283.52/109,839.60 = 64,979.52/x
  3. Step 3: Cross multiply
    73,283.52x = 109,839.60 × 64,979.52
  4. Step 4: Simplify right side
    73,283.52x = 7,137,324,484.99
  5. Step 5: Solve for x
    x = 7,137,324,484.99/73,283.52
  6. Step 6: Final answer
    x = 97,393.31

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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.