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Finding the Fourth Proportional to 172,695.60, 259,102.22 and 105,362.44

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Solution

The fourth proportional to 172,695.60, 259,102.22 and 105,362.44 is: 158,079.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,695.60 : 259,102.22 = 105,362.44 : x
  2. Step 2: Convert to fraction form
    172,695.60/259,102.22 = 105,362.44/x
  3. Step 3: Cross multiply
    172,695.60x = 259,102.22 × 105,362.44
  4. Step 4: Simplify right side
    172,695.60x = 27,299,642,108.62
  5. Step 5: Solve for x
    x = 27,299,642,108.62/172,695.60
  6. Step 6: Final answer
    x = 158,079.55

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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.