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Finding the Fourth Proportional to 95,999.10, 143,998.65 and 60,978.30

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Solution

The fourth proportional to 95,999.10, 143,998.65 and 60,978.30 is: 91,467.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,999.10 : 143,998.65 = 60,978.30 : x
  2. Step 2: Convert to fraction form
    95,999.10/143,998.65 = 60,978.30/x
  3. Step 3: Cross multiply
    95,999.10x = 143,998.65 × 60,978.30
  4. Step 4: Simplify right side
    95,999.10x = 8,780,792,879.30
  5. Step 5: Solve for x
    x = 8,780,792,879.30/95,999.10
  6. Step 6: Final answer
    x = 91,467.45

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Similar ratio
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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.