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Finding the Fourth Proportional to 215,518.44, 323,328.46 and 67,774.44

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Solution

The fourth proportional to 215,518.44, 323,328.46 and 67,774.44 is: 101,677.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,518.44 : 323,328.46 = 67,774.44 : x
  2. Step 2: Convert to fraction form
    215,518.44/323,328.46 = 67,774.44/x
  3. Step 3: Cross multiply
    215,518.44x = 323,328.46 × 67,774.44
  4. Step 4: Simplify right side
    215,518.44x = 21,913,405,312.56
  5. Step 5: Solve for x
    x = 21,913,405,312.56/215,518.44
  6. Step 6: Final answer
    x = 101,677.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.