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Finding the Fourth Proportional to 104,687.91, 144,472.28 and 56,944.28

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Solution

The fourth proportional to 104,687.91, 144,472.28 and 56,944.28 is: 78,584.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,687.91 : 144,472.28 = 56,944.28 : x
  2. Step 2: Convert to fraction form
    104,687.91/144,472.28 = 56,944.28/x
  3. Step 3: Cross multiply
    104,687.91x = 144,472.28 × 56,944.28
  4. Step 4: Simplify right side
    104,687.91x = 8,226,870,041.02
  5. Step 5: Solve for x
    x = 8,226,870,041.02/104,687.91
  6. Step 6: Final answer
    x = 78,584.72

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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.