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Finding the Fourth Proportional to 103,894.57, 143,374.53 and 59,182.57

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Solution

The fourth proportional to 103,894.57, 143,374.53 and 59,182.57 is: 81,671.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,894.57 : 143,374.53 = 59,182.57 : x
  2. Step 2: Convert to fraction form
    103,894.57/143,374.53 = 59,182.57/x
  3. Step 3: Cross multiply
    103,894.57x = 143,374.53 × 59,182.57
  4. Step 4: Simplify right side
    103,894.57x = 8,485,273,157.94
  5. Step 5: Solve for x
    x = 8,485,273,157.94/103,894.57
  6. Step 6: Final answer
    x = 81,671.96

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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.