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Finding the Fourth Proportional to 117,635.88, 162,338.54 and 63,920.89

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Solution

The fourth proportional to 117,635.88, 162,338.54 and 63,920.89 is: 88,211.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,635.88 : 162,338.54 = 63,920.89 : x
  2. Step 2: Convert to fraction form
    117,635.88/162,338.54 = 63,920.89/x
  3. Step 3: Cross multiply
    117,635.88x = 162,338.54 × 63,920.89
  4. Step 4: Simplify right side
    117,635.88x = 10,376,824,249.49
  5. Step 5: Solve for x
    x = 10,376,824,249.49/117,635.88
  6. Step 6: Final answer
    x = 88,211.39

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1.5x scale

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.