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Finding the Fourth Proportional to 96,662, 133,393.92 and 56,403.56

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Solution

The fourth proportional to 96,662, 133,393.92 and 56,403.56 is: 77,837.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,662 : 133,393.92 = 56,403.56 : x
  2. Step 2: Convert to fraction form
    96,662/133,393.92 = 56,403.56/x
  3. Step 3: Cross multiply
    96,662x = 133,393.92 × 56,403.56
  4. Step 4: Simplify right side
    96,662x = 7,523,891,970.36
  5. Step 5: Solve for x
    x = 7,523,891,970.36/96,662
  6. Step 6: Final answer
    x = 77,837.12

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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.