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Finding the Fourth Proportional to 101,245.30, 151,911.15 and 48,627.70

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Solution

The fourth proportional to 101,245.30, 151,911.15 and 48,627.70 is: 72,962.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,245.30 : 151,911.15 = 48,627.70 : x
  2. Step 2: Convert to fraction form
    101,245.30/151,911.15 = 48,627.70/x
  3. Step 3: Cross multiply
    101,245.30x = 151,911.15 × 48,627.70
  4. Step 4: Simplify right side
    101,245.30x = 7,387,089,828.86
  5. Step 5: Solve for x
    x = 7,387,089,828.86/101,245.30
  6. Step 6: Final answer
    x = 72,962.30

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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.