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Finding the Fourth Proportional to 95,620.60, 143,430.90 and 54,148.60

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Solution

The fourth proportional to 95,620.60, 143,430.90 and 54,148.60 is: 81,222.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,620.60 : 143,430.90 = 54,148.60 : x
  2. Step 2: Convert to fraction form
    95,620.60/143,430.90 = 54,148.60/x
  3. Step 3: Cross multiply
    95,620.60x = 143,430.90 × 54,148.60
  4. Step 4: Simplify right side
    95,620.60x = 7,766,582,431.74
  5. Step 5: Solve for x
    x = 7,766,582,431.74/95,620.60
  6. Step 6: Final answer
    x = 81,222.90

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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.