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Finding the Fourth Proportional to 148,513.70, 204,904.13 and 91,094.02

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Solution

The fourth proportional to 148,513.70, 204,904.13 and 91,094.02 is: 125,682.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,513.70 : 204,904.13 = 91,094.02 : x
  2. Step 2: Convert to fraction form
    148,513.70/204,904.13 = 91,094.02/x
  3. Step 3: Cross multiply
    148,513.70x = 204,904.13 × 91,094.02
  4. Step 4: Simplify right side
    148,513.70x = 18,665,540,460.98
  5. Step 5: Solve for x
    x = 18,665,540,460.98/148,513.70
  6. Step 6: Final answer
    x = 125,682.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.