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Finding the Fourth Proportional to 104,687.66, 144,471.94 and 56,944.06

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Solution

The fourth proportional to 104,687.66, 144,471.94 and 56,944.06 is: 78,584.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,687.66 : 144,471.94 = 56,944.06 : x
  2. Step 2: Convert to fraction form
    104,687.66/144,471.94 = 56,944.06/x
  3. Step 3: Cross multiply
    104,687.66x = 144,471.94 × 56,944.06
  4. Step 4: Simplify right side
    104,687.66x = 8,226,818,819.68
  5. Step 5: Solve for x
    x = 8,226,818,819.68/104,687.66
  6. Step 6: Final answer
    x = 78,584.42

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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.