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Finding the Fourth Proportional to 91,341.66, 126,035.37 and 51,042.54

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Solution

The fourth proportional to 91,341.66, 126,035.37 and 51,042.54 is: 70,429.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,341.66 : 126,035.37 = 51,042.54 : x
  2. Step 2: Convert to fraction form
    91,341.66/126,035.37 = 51,042.54/x
  3. Step 3: Cross multiply
    91,341.66x = 126,035.37 × 51,042.54
  4. Step 4: Simplify right side
    91,341.66x = 6,433,165,414.64
  5. Step 5: Solve for x
    x = 6,433,165,414.64/91,341.66
  6. Step 6: Final answer
    x = 70,429.70

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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.