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Finding the Fourth Proportional to 114,555.80, 171,876.90 and 55,443.80

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Solution

The fourth proportional to 114,555.80, 171,876.90 and 55,443.80 is: 83,186.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,555.80 : 171,876.90 = 55,443.80 : x
  2. Step 2: Convert to fraction form
    114,555.80/171,876.90 = 55,443.80/x
  3. Step 3: Cross multiply
    114,555.80x = 171,876.90 × 55,443.80
  4. Step 4: Simplify right side
    114,555.80x = 9,529,508,468.22
  5. Step 5: Solve for x
    x = 9,529,508,468.22/114,555.80
  6. Step 6: Final answer
    x = 83,186.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.