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Finding the Fourth Proportional to 170,045.40, 255,057.30 and 57,725.40

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Solution

The fourth proportional to 170,045.40, 255,057.30 and 57,725.40 is: 86,584.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,045.40 : 255,057.30 = 57,725.40 : x
  2. Step 2: Convert to fraction form
    170,045.40/255,057.30 = 57,725.40/x
  3. Step 3: Cross multiply
    170,045.40x = 255,057.30 × 57,725.40
  4. Step 4: Simplify right side
    170,045.40x = 14,723,284,665.42
  5. Step 5: Solve for x
    x = 14,723,284,665.42/170,045.40
  6. Step 6: Final answer
    x = 86,584.43

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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.