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Finding the Fourth Proportional to 120,801.49, 166,710.26 and 67,087.40

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Solution

The fourth proportional to 120,801.49, 166,710.26 and 67,087.40 is: 92,582.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,801.49 : 166,710.26 = 67,087.40 : x
  2. Step 2: Convert to fraction form
    120,801.49/166,710.26 = 67,087.40/x
  3. Step 3: Cross multiply
    120,801.49x = 166,710.26 × 67,087.40
  4. Step 4: Simplify right side
    120,801.49x = 11,184,157,230.89
  5. Step 5: Solve for x
    x = 11,184,157,230.89/120,801.49
  6. Step 6: Final answer
    x = 92,582.94

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1.5x scale

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.