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Finding the Fourth Proportional to 96,643.13, 133,425.83 and 63,167.45

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Solution

The fourth proportional to 96,643.13, 133,425.83 and 63,167.45 is: 87,209.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,643.13 : 133,425.83 = 63,167.45 : x
  2. Step 2: Convert to fraction form
    96,643.13/133,425.83 = 63,167.45/x
  3. Step 3: Cross multiply
    96,643.13x = 133,425.83 × 63,167.45
  4. Step 4: Simplify right side
    96,643.13x = 8,428,168,936.02
  5. Step 5: Solve for x
    x = 8,428,168,936.02/96,643.13
  6. Step 6: Final answer
    x = 87,209.19

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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.