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Finding the Fourth Proportional to 66,353.23, 99,546.71 and 19,606.11

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Solution

The fourth proportional to 66,353.23, 99,546.71 and 19,606.11 is: 29,414.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,353.23 : 99,546.71 = 19,606.11 : x
  2. Step 2: Convert to fraction form
    66,353.23/99,546.71 = 19,606.11/x
  3. Step 3: Cross multiply
    66,353.23x = 99,546.71 × 19,606.11
  4. Step 4: Simplify right side
    66,353.23x = 1,951,723,746.40
  5. Step 5: Solve for x
    x = 1,951,723,746.40/66,353.23
  6. Step 6: Final answer
    x = 29,414.15

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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.