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Finding the Fourth Proportional to 171,998.44, 257,978.20 and 59,657.92

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Solution

The fourth proportional to 171,998.44, 257,978.20 and 59,657.92 is: 89,480.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,998.44 : 257,978.20 = 59,657.92 : x
  2. Step 2: Convert to fraction form
    171,998.44/257,978.20 = 59,657.92/x
  3. Step 3: Cross multiply
    171,998.44x = 257,978.20 × 59,657.92
  4. Step 4: Simplify right side
    171,998.44x = 15,390,442,817.34
  5. Step 5: Solve for x
    x = 15,390,442,817.34/171,998.44
  6. Step 6: Final answer
    x = 89,480.13

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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.