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Finding the Fourth Proportional to 199,900.92, 299,749.50 and 66,733.32

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Solution

The fourth proportional to 199,900.92, 299,749.50 and 66,733.32 is: 100,065.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,900.92 : 299,749.50 = 66,733.32 : x
  2. Step 2: Convert to fraction form
    199,900.92/299,749.50 = 66,733.32/x
  3. Step 3: Cross multiply
    199,900.92x = 299,749.50 × 66,733.32
  4. Step 4: Simplify right side
    199,900.92x = 20,003,279,303.34
  5. Step 5: Solve for x
    x = 20,003,279,303.34/199,900.92
  6. Step 6: Final answer
    x = 100,065.97

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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.