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Finding the Fourth Proportional to 53,107.59, 79,179.87 and 51,722.49

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Solution

The fourth proportional to 53,107.59, 79,179.87 and 51,722.49 is: 77,114.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,107.59 : 79,179.87 = 51,722.49 : x
  2. Step 2: Convert to fraction form
    53,107.59/79,179.87 = 51,722.49/x
  3. Step 3: Cross multiply
    53,107.59x = 79,179.87 × 51,722.49
  4. Step 4: Simplify right side
    53,107.59x = 4,095,380,034.28
  5. Step 5: Solve for x
    x = 4,095,380,034.28/53,107.59
  6. Step 6: Final answer
    x = 77,114.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.