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Finding the Fourth Proportional to 170,402.40, 255,634.32 and 58,076.40

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Solution

The fourth proportional to 170,402.40, 255,634.32 and 58,076.40 is: 87,125.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,402.40 : 255,634.32 = 58,076.40 : x
  2. Step 2: Convert to fraction form
    170,402.40/255,634.32 = 58,076.40/x
  3. Step 3: Cross multiply
    170,402.40x = 255,634.32 × 58,076.40
  4. Step 4: Simplify right side
    170,402.40x = 14,846,321,022.05
  5. Step 5: Solve for x
    x = 14,846,321,022.05/170,402.40
  6. Step 6: Final answer
    x = 87,125.07

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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.