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Finding the Fourth Proportional to 84,507.96, 116,620.78 and 50,514.80

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Solution

The fourth proportional to 84,507.96, 116,620.78 and 50,514.80 is: 69,710.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,507.96 : 116,620.78 = 50,514.80 : x
  2. Step 2: Convert to fraction form
    84,507.96/116,620.78 = 50,514.80/x
  3. Step 3: Cross multiply
    84,507.96x = 116,620.78 × 50,514.80
  4. Step 4: Simplify right side
    84,507.96x = 5,891,075,377.54
  5. Step 5: Solve for x
    x = 5,891,075,377.54/84,507.96
  6. Step 6: Final answer
    x = 69,710.30

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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.