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Finding the Fourth Proportional to 136,961.88, 205,475.62 and 43,467.63

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Solution

The fourth proportional to 136,961.88, 205,475.62 and 43,467.63 is: 65,211.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,961.88 : 205,475.62 = 43,467.63 : x
  2. Step 2: Convert to fraction form
    136,961.88/205,475.62 = 43,467.63/x
  3. Step 3: Cross multiply
    136,961.88x = 205,475.62 × 43,467.63
  4. Step 4: Simplify right side
    136,961.88x = 8,931,538,224.18
  5. Step 5: Solve for x
    x = 8,931,538,224.18/136,961.88
  6. Step 6: Final answer
    x = 65,211.85

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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.