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Finding the Fourth Proportional to 67,004.78, 100,908.49 and 61,026.02

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Solution

The fourth proportional to 67,004.78, 100,908.49 and 61,026.02 is: 91,904.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,004.78 : 100,908.49 = 61,026.02 : x
  2. Step 2: Convert to fraction form
    67,004.78/100,908.49 = 61,026.02/x
  3. Step 3: Cross multiply
    67,004.78x = 100,908.49 × 61,026.02
  4. Step 4: Simplify right side
    67,004.78x = 6,158,043,223.78
  5. Step 5: Solve for x
    x = 6,158,043,223.78/67,004.78
  6. Step 6: Final answer
    x = 91,904.54

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.