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Finding the Fourth Proportional to 136,951.60, 205,427.40 and 94,961.20

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Solution

The fourth proportional to 136,951.60, 205,427.40 and 94,961.20 is: 142,441.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,951.60 : 205,427.40 = 94,961.20 : x
  2. Step 2: Convert to fraction form
    136,951.60/205,427.40 = 94,961.20/x
  3. Step 3: Cross multiply
    136,951.60x = 205,427.40 × 94,961.20
  4. Step 4: Simplify right side
    136,951.60x = 19,507,632,416.88
  5. Step 5: Solve for x
    x = 19,507,632,416.88/136,951.60
  6. Step 6: Final answer
    x = 142,441.80

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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.