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Finding the Fourth Proportional to 82,651.62, 114,114.16 and 63,497.28

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Solution

The fourth proportional to 82,651.62, 114,114.16 and 63,497.28 is: 87,668.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,651.62 : 114,114.16 = 63,497.28 : x
  2. Step 2: Convert to fraction form
    82,651.62/114,114.16 = 63,497.28/x
  3. Step 3: Cross multiply
    82,651.62x = 114,114.16 × 63,497.28
  4. Step 4: Simplify right side
    82,651.62x = 7,245,938,769.48
  5. Step 5: Solve for x
    x = 7,245,938,769.48/82,651.62
  6. Step 6: Final answer
    x = 87,668.44

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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.