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Finding the Fourth Proportional to 171,428.05, 257,158.97 and 59,093.47

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Solution

The fourth proportional to 171,428.05, 257,158.97 and 59,093.47 is: 88,646.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,428.05 : 257,158.97 = 59,093.47 : x
  2. Step 2: Convert to fraction form
    171,428.05/257,158.97 = 59,093.47/x
  3. Step 3: Cross multiply
    171,428.05x = 257,158.97 × 59,093.47
  4. Step 4: Simplify right side
    171,428.05x = 15,196,416,849.77
  5. Step 5: Solve for x
    x = 15,196,416,849.77/171,428.05
  6. Step 6: Final answer
    x = 88,646.04

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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.