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Finding the Fourth Proportional to 95,847.20, 143,662.80 and 45,951.20

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Solution

The fourth proportional to 95,847.20, 143,662.80 and 45,951.20 is: 68,875.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,847.20 : 143,662.80 = 45,951.20 : x
  2. Step 2: Convert to fraction form
    95,847.20/143,662.80 = 45,951.20/x
  3. Step 3: Cross multiply
    95,847.20x = 143,662.80 × 45,951.20
  4. Step 4: Simplify right side
    95,847.20x = 6,601,478,055.36
  5. Step 5: Solve for x
    x = 6,601,478,055.36/95,847.20
  6. Step 6: Final answer
    x = 68,875.02

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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.