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Finding the Fourth Proportional to 120,763.95, 166,646.53 and 67,048.95

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Solution

The fourth proportional to 120,763.95, 166,646.53 and 67,048.95 is: 92,523.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,763.95 : 166,646.53 = 67,048.95 : x
  2. Step 2: Convert to fraction form
    120,763.95/166,646.53 = 67,048.95/x
  3. Step 3: Cross multiply
    120,763.95x = 166,646.53 × 67,048.95
  4. Step 4: Simplify right side
    120,763.95x = 11,173,474,857.64
  5. Step 5: Solve for x
    x = 11,173,474,857.64/120,763.95
  6. Step 6: Final answer
    x = 92,523.26

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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.