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Finding the Fourth Proportional to 220,616.64, 304,454.16 and 120,014.64

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Solution

The fourth proportional to 220,616.64, 304,454.16 and 120,014.64 is: 165,621.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,616.64 : 304,454.16 = 120,014.64 : x
  2. Step 2: Convert to fraction form
    220,616.64/304,454.16 = 120,014.64/x
  3. Step 3: Cross multiply
    220,616.64x = 304,454.16 × 120,014.64
  4. Step 4: Simplify right side
    220,616.64x = 36,538,956,408.90
  5. Step 5: Solve for x
    x = 36,538,956,408.90/220,616.64
  6. Step 6: Final answer
    x = 165,621.94

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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.