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Finding the Fourth Proportional to 170,287.07, 255,429.90 and 51,958.02

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Solution

The fourth proportional to 170,287.07, 255,429.90 and 51,958.02 is: 77,936.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,287.07 : 255,429.90 = 51,958.02 : x
  2. Step 2: Convert to fraction form
    170,287.07/255,429.90 = 51,958.02/x
  3. Step 3: Cross multiply
    170,287.07x = 255,429.90 × 51,958.02
  4. Step 4: Simplify right side
    170,287.07x = 13,271,631,852.80
  5. Step 5: Solve for x
    x = 13,271,631,852.80/170,287.07
  6. Step 6: Final answer
    x = 77,936.81

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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.