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Finding the Fourth Proportional to 170,037.90, 255,046.05 and 57,717.90

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Solution

The fourth proportional to 170,037.90, 255,046.05 and 57,717.90 is: 86,573.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,037.90 : 255,046.05 = 57,717.90 : x
  2. Step 2: Convert to fraction form
    170,037.90/255,046.05 = 57,717.90/x
  3. Step 3: Cross multiply
    170,037.90x = 255,046.05 × 57,717.90
  4. Step 4: Simplify right side
    170,037.90x = 14,720,722,409.30
  5. Step 5: Solve for x
    x = 14,720,722,409.30/170,037.90
  6. Step 6: Final answer
    x = 86,573.18

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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.