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Finding the Fourth Proportional to 103,124.88, 142,336.44 and 67,252.41

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Solution

The fourth proportional to 103,124.88, 142,336.44 and 67,252.41 is: 92,824.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,124.88 : 142,336.44 = 67,252.41 : x
  2. Step 2: Convert to fraction form
    103,124.88/142,336.44 = 67,252.41/x
  3. Step 3: Cross multiply
    103,124.88x = 142,336.44 × 67,252.41
  4. Step 4: Simplify right side
    103,124.88x = 9,572,468,620.82
  5. Step 5: Solve for x
    x = 9,572,468,620.82/103,124.88
  6. Step 6: Final answer
    x = 92,824.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.