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Finding the Fourth Proportional to 91,696.56, 126,541.21 and 51,410.19

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Solution

The fourth proportional to 91,696.56, 126,541.21 and 51,410.19 is: 70,946.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,696.56 : 126,541.21 = 51,410.19 : x
  2. Step 2: Convert to fraction form
    91,696.56/126,541.21 = 51,410.19/x
  3. Step 3: Cross multiply
    91,696.56x = 126,541.21 × 51,410.19
  4. Step 4: Simplify right side
    91,696.56x = 6,505,507,648.93
  5. Step 5: Solve for x
    x = 6,505,507,648.93/91,696.56
  6. Step 6: Final answer
    x = 70,946.04

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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.