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Finding the Fourth Proportional to 133,020.93, 199,419.03 and 61,906.89

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Solution

The fourth proportional to 133,020.93, 199,419.03 and 61,906.89 is: 92,808.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,020.93 : 199,419.03 = 61,906.89 : x
  2. Step 2: Convert to fraction form
    133,020.93/199,419.03 = 61,906.89/x
  3. Step 3: Cross multiply
    133,020.93x = 199,419.03 × 61,906.89
  4. Step 4: Simplify right side
    133,020.93x = 12,345,411,954.12
  5. Step 5: Solve for x
    x = 12,345,411,954.12/133,020.93
  6. Step 6: Final answer
    x = 92,808.04

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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.