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Finding the Fourth Proportional to 96,682.32, 133,421.04 and 54,240.75

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Solution

The fourth proportional to 96,682.32, 133,421.04 and 54,240.75 is: 74,851.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,682.32 : 133,421.04 = 54,240.75 : x
  2. Step 2: Convert to fraction form
    96,682.32/133,421.04 = 54,240.75/x
  3. Step 3: Cross multiply
    96,682.32x = 133,421.04 × 54,240.75
  4. Step 4: Simplify right side
    96,682.32x = 7,236,857,275.38
  5. Step 5: Solve for x
    x = 7,236,857,275.38/96,682.32
  6. Step 6: Final answer
    x = 74,851.92

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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.