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Finding the Fourth Proportional to 101,248.25, 139,730.22 and 58,240.89

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Solution

The fourth proportional to 101,248.25, 139,730.22 and 58,240.89 is: 80,376.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,248.25 : 139,730.22 = 58,240.89 : x
  2. Step 2: Convert to fraction form
    101,248.25/139,730.22 = 58,240.89/x
  3. Step 3: Cross multiply
    101,248.25x = 139,730.22 × 58,240.89
  4. Step 4: Simplify right side
    101,248.25x = 8,138,012,372.70
  5. Step 5: Solve for x
    x = 8,138,012,372.70/101,248.25
  6. Step 6: Final answer
    x = 80,376.82

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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.