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Finding the Fourth Proportional to 167,075.52, 250,659.54 and 77,145.68

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Solution

The fourth proportional to 167,075.52, 250,659.54 and 77,145.68 is: 115,739.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,075.52 : 250,659.54 = 77,145.68 : x
  2. Step 2: Convert to fraction form
    167,075.52/250,659.54 = 77,145.68/x
  3. Step 3: Cross multiply
    167,075.52x = 250,659.54 × 77,145.68
  4. Step 4: Simplify right side
    167,075.52x = 19,337,300,661.79
  5. Step 5: Solve for x
    x = 19,337,300,661.79/167,075.52
  6. Step 6: Final answer
    x = 115,739.88

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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.