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Finding the Fourth Proportional to 92,625.73, 139,124.59 and 55,258.81

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Solution

The fourth proportional to 92,625.73, 139,124.59 and 55,258.81 is: 82,999.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,625.73 : 139,124.59 = 55,258.81 : x
  2. Step 2: Convert to fraction form
    92,625.73/139,124.59 = 55,258.81/x
  3. Step 3: Cross multiply
    92,625.73x = 139,124.59 × 55,258.81
  4. Step 4: Simplify right side
    92,625.73x = 7,687,858,799.18
  5. Step 5: Solve for x
    x = 7,687,858,799.18/92,625.73
  6. Step 6: Final answer
    x = 82,999.17

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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.