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Finding the Fourth Proportional to 172,955.50, 259,441.20 and 53,003.86

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Solution

The fourth proportional to 172,955.50, 259,441.20 and 53,003.86 is: 79,508.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,955.50 : 259,441.20 = 53,003.86 : x
  2. Step 2: Convert to fraction form
    172,955.50/259,441.20 = 53,003.86/x
  3. Step 3: Cross multiply
    172,955.50x = 259,441.20 × 53,003.86
  4. Step 4: Simplify right side
    172,955.50x = 13,751,385,043.03
  5. Step 5: Solve for x
    x = 13,751,385,043.03/172,955.50
  6. Step 6: Final answer
    x = 79,508.23

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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.