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Finding the Fourth Proportional to 120,652.93, 166,503.77 and 66,935.96

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Solution

The fourth proportional to 120,652.93, 166,503.77 and 66,935.96 is: 92,373.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,652.93 : 166,503.77 = 66,935.96 : x
  2. Step 2: Convert to fraction form
    120,652.93/166,503.77 = 66,935.96/x
  3. Step 3: Cross multiply
    120,652.93x = 166,503.77 × 66,935.96
  4. Step 4: Simplify right side
    120,652.93x = 11,145,089,688.57
  5. Step 5: Solve for x
    x = 11,145,089,688.57/120,652.93
  6. Step 6: Final answer
    x = 92,373.14

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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.