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Finding the Fourth Proportional to 170,092.70, 255,029.70 and 70,292.60

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Solution

The fourth proportional to 170,092.70, 255,029.70 and 70,292.60 is: 105,393.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,092.70 : 255,029.70 = 70,292.60 : x
  2. Step 2: Convert to fraction form
    170,092.70/255,029.70 = 70,292.60/x
  3. Step 3: Cross multiply
    170,092.70x = 255,029.70 × 70,292.60
  4. Step 4: Simplify right side
    170,092.70x = 17,926,700,690.22
  5. Step 5: Solve for x
    x = 17,926,700,690.22/170,092.70
  6. Step 6: Final answer
    x = 105,393.71

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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.