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Finding the Fourth Proportional to 73,210.44, 109,700.76 and 43,612.08

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Solution

The fourth proportional to 73,210.44, 109,700.76 and 43,612.08 is: 65,349.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,210.44 : 109,700.76 = 43,612.08 : x
  2. Step 2: Convert to fraction form
    73,210.44/109,700.76 = 43,612.08/x
  3. Step 3: Cross multiply
    73,210.44x = 109,700.76 × 43,612.08
  4. Step 4: Simplify right side
    73,210.44x = 4,784,278,321.18
  5. Step 5: Solve for x
    x = 4,784,278,321.18/73,210.44
  6. Step 6: Final answer
    x = 65,349.67

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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.