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Finding the Fourth Proportional to 99,707.00, 149,476.41 and 43,505.87

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Solution

The fourth proportional to 99,707.00, 149,476.41 and 43,505.87 is: 65,222.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,707.00 : 149,476.41 = 43,505.87 : x
  2. Step 2: Convert to fraction form
    99,707.00/149,476.41 = 43,505.87/x
  3. Step 3: Cross multiply
    99,707.00x = 149,476.41 × 43,505.87
  4. Step 4: Simplify right side
    99,707.00x = 6,503,100,514.14
  5. Step 5: Solve for x
    x = 6,503,100,514.14/99,707.00
  6. Step 6: Final answer
    x = 65,222.11

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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.