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Finding the Fourth Proportional to 104,563.88, 144,297.86 and 56,817.40

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Solution

The fourth proportional to 104,563.88, 144,297.86 and 56,817.40 is: 78,407.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,563.88 : 144,297.86 = 56,817.40 : x
  2. Step 2: Convert to fraction form
    104,563.88/144,297.86 = 56,817.40/x
  3. Step 3: Cross multiply
    104,563.88x = 144,297.86 × 56,817.40
  4. Step 4: Simplify right side
    104,563.88x = 8,198,629,230.76
  5. Step 5: Solve for x
    x = 8,198,629,230.76/104,563.88
  6. Step 6: Final answer
    x = 78,407.85

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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.