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Finding the Fourth Proportional to 101,216.60, 151,824.90 and 48,613.40

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Solution

The fourth proportional to 101,216.60, 151,824.90 and 48,613.40 is: 72,920.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,216.60 : 151,824.90 = 48,613.40 : x
  2. Step 2: Convert to fraction form
    101,216.60/151,824.90 = 48,613.40/x
  3. Step 3: Cross multiply
    101,216.60x = 151,824.90 × 48,613.40
  4. Step 4: Simplify right side
    101,216.60x = 7,380,724,593.66
  5. Step 5: Solve for x
    x = 7,380,724,593.66/101,216.60
  6. Step 6: Final answer
    x = 72,920.10

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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.