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Finding the Fourth Proportional to 172,663.68, 259,025.88 and 71,461.44

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Solution

The fourth proportional to 172,663.68, 259,025.88 and 71,461.44 is: 107,204.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,663.68 : 259,025.88 = 71,461.44 : x
  2. Step 2: Convert to fraction form
    172,663.68/259,025.88 = 71,461.44/x
  3. Step 3: Cross multiply
    172,663.68x = 259,025.88 × 71,461.44
  4. Step 4: Simplify right side
    172,663.68x = 18,510,362,382.07
  5. Step 5: Solve for x
    x = 18,510,362,382.07/172,663.68
  6. Step 6: Final answer
    x = 107,204.73

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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.