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Finding the Fourth Proportional to 170,218.97, 255,254.60 and 57,869.01

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Solution

The fourth proportional to 170,218.97, 255,254.60 and 57,869.01 is: 86,778.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,218.97 : 255,254.60 = 57,869.01 : x
  2. Step 2: Convert to fraction form
    170,218.97/255,254.60 = 57,869.01/x
  3. Step 3: Cross multiply
    170,218.97x = 255,254.60 × 57,869.01
  4. Step 4: Simplify right side
    170,218.97x = 14,771,331,144.62
  5. Step 5: Solve for x
    x = 14,771,331,144.62/170,218.97
  6. Step 6: Final answer
    x = 86,778.41

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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.