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Finding the Fourth Proportional to 99,082.98, 136,701.18 and 56,611.44

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Solution

The fourth proportional to 99,082.98, 136,701.18 and 56,611.44 is: 78,104.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,082.98 : 136,701.18 = 56,611.44 : x
  2. Step 2: Convert to fraction form
    99,082.98/136,701.18 = 56,611.44/x
  3. Step 3: Cross multiply
    99,082.98x = 136,701.18 × 56,611.44
  4. Step 4: Simplify right side
    99,082.98x = 7,738,850,649.50
  5. Step 5: Solve for x
    x = 7,738,850,649.50/99,082.98
  6. Step 6: Final answer
    x = 78,104.74

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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.