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Finding the Fourth Proportional to 171,648.21, 257,483.66 and 59,339.28

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Solution

The fourth proportional to 171,648.21, 257,483.66 and 59,339.28 is: 89,012.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,648.21 : 257,483.66 = 59,339.28 : x
  2. Step 2: Convert to fraction form
    171,648.21/257,483.66 = 59,339.28/x
  3. Step 3: Cross multiply
    171,648.21x = 257,483.66 × 59,339.28
  4. Step 4: Simplify right side
    171,648.21x = 15,278,895,998.82
  5. Step 5: Solve for x
    x = 15,278,895,998.82/171,648.21
  6. Step 6: Final answer
    x = 89,012.85

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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.