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Finding the Fourth Proportional to 104,172.80, 143,755.71 and 58,855.46

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Solution

The fourth proportional to 104,172.80, 143,755.71 and 58,855.46 is: 81,218.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,172.80 : 143,755.71 = 58,855.46 : x
  2. Step 2: Convert to fraction form
    104,172.80/143,755.71 = 58,855.46/x
  3. Step 3: Cross multiply
    104,172.80x = 143,755.71 × 58,855.46
  4. Step 4: Simplify right side
    104,172.80x = 8,460,808,439.68
  5. Step 5: Solve for x
    x = 8,460,808,439.68/104,172.80
  6. Step 6: Final answer
    x = 81,218.98

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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.