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Finding the Fourth Proportional to 99,755.96, 137,676.40 and 63,460.94

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Solution

The fourth proportional to 99,755.96, 137,676.40 and 63,460.94 is: 87,584.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,755.96 : 137,676.40 = 63,460.94 : x
  2. Step 2: Convert to fraction form
    99,755.96/137,676.40 = 63,460.94/x
  3. Step 3: Cross multiply
    99,755.96x = 137,676.40 × 63,460.94
  4. Step 4: Simplify right side
    99,755.96x = 8,737,073,759.82
  5. Step 5: Solve for x
    x = 8,737,073,759.82/99,755.96
  6. Step 6: Final answer
    x = 87,584.48

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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.