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Finding the Fourth Proportional to 92,644.60, 139,152.78 and 55,277.64

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Solution

The fourth proportional to 92,644.60, 139,152.78 and 55,277.64 is: 83,027.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,644.60 : 139,152.78 = 55,277.64 : x
  2. Step 2: Convert to fraction form
    92,644.60/139,152.78 = 55,277.64/x
  3. Step 3: Cross multiply
    92,644.60x = 139,152.78 × 55,277.64
  4. Step 4: Simplify right side
    92,644.60x = 7,692,037,277.84
  5. Step 5: Solve for x
    x = 7,692,037,277.84/92,644.60
  6. Step 6: Final answer
    x = 83,027.37

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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.