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Finding the Fourth Proportional to 143,893.41, 215,841.95 and 55,152.24

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Solution

The fourth proportional to 143,893.41, 215,841.95 and 55,152.24 is: 82,729.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,893.41 : 215,841.95 = 55,152.24 : x
  2. Step 2: Convert to fraction form
    143,893.41/215,841.95 = 55,152.24/x
  3. Step 3: Cross multiply
    143,893.41x = 215,841.95 × 55,152.24
  4. Step 4: Simplify right side
    143,893.41x = 11,904,166,752.71
  5. Step 5: Solve for x
    x = 11,904,166,752.71/143,893.41
  6. Step 6: Final answer
    x = 82,729.06

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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.