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Finding the Fourth Proportional to 92,644.88, 139,153.28 and 55,277.87

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Solution

The fourth proportional to 92,644.88, 139,153.28 and 55,277.87 is: 83,027.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,644.88 : 139,153.28 = 55,277.87 : x
  2. Step 2: Convert to fraction form
    92,644.88/139,153.28 = 55,277.87/x
  3. Step 3: Cross multiply
    92,644.88x = 139,153.28 × 55,277.87
  4. Step 4: Simplify right side
    92,644.88x = 7,692,095,949.76
  5. Step 5: Solve for x
    x = 7,692,095,949.76/92,644.88
  6. Step 6: Final answer
    x = 83,027.75

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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.