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Finding the Fourth Proportional to 66,500.96, 99,668.16 and 33,230.36

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Solution

The fourth proportional to 66,500.96, 99,668.16 and 33,230.36 is: 49,803.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,500.96 : 99,668.16 = 33,230.36 : x
  2. Step 2: Convert to fraction form
    66,500.96/99,668.16 = 33,230.36/x
  3. Step 3: Cross multiply
    66,500.96x = 99,668.16 × 33,230.36
  4. Step 4: Simplify right side
    66,500.96x = 3,312,008,837.34
  5. Step 5: Solve for x
    x = 3,312,008,837.34/66,500.96
  6. Step 6: Final answer
    x = 49,803.93

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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.