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Finding the Fourth Proportional to 171,999.90, 257,781.15 and 153,191.70

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Solution

The fourth proportional to 171,999.90, 257,781.15 and 153,191.70 is: 229,592.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,999.90 : 257,781.15 = 153,191.70 : x
  2. Step 2: Convert to fraction form
    171,999.90/257,781.15 = 153,191.70/x
  3. Step 3: Cross multiply
    171,999.90x = 257,781.15 × 153,191.70
  4. Step 4: Simplify right side
    171,999.90x = 39,489,932,596.46
  5. Step 5: Solve for x
    x = 39,489,932,596.46/171,999.90
  6. Step 6: Final answer
    x = 229,592.76

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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.