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Finding the Fourth Proportional to 104,195.89, 143,790.15 and 56,450.44

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Solution

The fourth proportional to 104,195.89, 143,790.15 and 56,450.44 is: 77,901.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,195.89 : 143,790.15 = 56,450.44 : x
  2. Step 2: Convert to fraction form
    104,195.89/143,790.15 = 56,450.44/x
  3. Step 3: Cross multiply
    104,195.89x = 143,790.15 × 56,450.44
  4. Step 4: Simplify right side
    104,195.89x = 8,117,017,235.17
  5. Step 5: Solve for x
    x = 8,117,017,235.17/104,195.89
  6. Step 6: Final answer
    x = 77,901.51

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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.