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Finding the Fourth Proportional to 171,942.60, 257,913.90 and 101,083.80

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Solution

The fourth proportional to 171,942.60, 257,913.90 and 101,083.80 is: 151,625.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,942.60 : 257,913.90 = 101,083.80 : x
  2. Step 2: Convert to fraction form
    171,942.60/257,913.90 = 101,083.80/x
  3. Step 3: Cross multiply
    171,942.60x = 257,913.90 × 101,083.80
  4. Step 4: Simplify right side
    171,942.60x = 26,070,917,084.82
  5. Step 5: Solve for x
    x = 26,070,917,084.82/171,942.60
  6. Step 6: Final answer
    x = 151,625.70

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1.5x scale

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.