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Finding the Fourth Proportional to 73,062.96, 109,596.60 and 28,700.88

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Solution

The fourth proportional to 73,062.96, 109,596.60 and 28,700.88 is: 43,052.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,062.96 : 109,596.60 = 28,700.88 : x
  2. Step 2: Convert to fraction form
    73,062.96/109,596.60 = 28,700.88/x
  3. Step 3: Cross multiply
    73,062.96x = 109,596.60 × 28,700.88
  4. Step 4: Simplify right side
    73,062.96x = 3,145,518,865.01
  5. Step 5: Solve for x
    x = 3,145,518,865.01/73,062.96
  6. Step 6: Final answer
    x = 43,052.17

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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.