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Finding the Fourth Proportional to 121,027.62, 167,015.72 and 67,311.48

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Solution

The fourth proportional to 121,027.62, 167,015.72 and 67,311.48 is: 92,888.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,027.62 : 167,015.72 = 67,311.48 : x
  2. Step 2: Convert to fraction form
    121,027.62/167,015.72 = 67,311.48/x
  3. Step 3: Cross multiply
    121,027.62x = 167,015.72 × 67,311.48
  4. Step 4: Simplify right side
    121,027.62x = 11,242,075,621.32
  5. Step 5: Solve for x
    x = 11,242,075,621.32/121,027.62
  6. Step 6: Final answer
    x = 92,888.51

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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.