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Finding the Fourth Proportional to 96,643.63, 133,426.53 and 63,167.95

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Solution

The fourth proportional to 96,643.63, 133,426.53 and 63,167.95 is: 87,209.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,643.63 : 133,426.53 = 63,167.95 : x
  2. Step 2: Convert to fraction form
    96,643.63/133,426.53 = 63,167.95/x
  3. Step 3: Cross multiply
    96,643.63x = 133,426.53 × 63,167.95
  4. Step 4: Simplify right side
    96,643.63x = 8,428,279,392.74
  5. Step 5: Solve for x
    x = 8,428,279,392.74/96,643.63
  6. Step 6: Final answer
    x = 87,209.88

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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.