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Finding the Fourth Proportional to 103,633.41, 143,014.11 and 58,921.41

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Solution

The fourth proportional to 103,633.41, 143,014.11 and 58,921.41 is: 81,311.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,633.41 : 143,014.11 = 58,921.41 : x
  2. Step 2: Convert to fraction form
    103,633.41/143,014.11 = 58,921.41/x
  3. Step 3: Cross multiply
    103,633.41x = 143,014.11 × 58,921.41
  4. Step 4: Simplify right side
    103,633.41x = 8,426,593,011.10
  5. Step 5: Solve for x
    x = 8,426,593,011.10/103,633.41
  6. Step 6: Final answer
    x = 81,311.55

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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.