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Finding the Fourth Proportional to 91,730.70, 126,614.61 and 54,026.82

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Solution

The fourth proportional to 91,730.70, 126,614.61 and 54,026.82 is: 74,572.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,730.70 : 126,614.61 = 54,026.82 : x
  2. Step 2: Convert to fraction form
    91,730.70/126,614.61 = 54,026.82/x
  3. Step 3: Cross multiply
    91,730.70x = 126,614.61 × 54,026.82
  4. Step 4: Simplify right side
    91,730.70x = 6,840,584,743.84
  5. Step 5: Solve for x
    x = 6,840,584,743.84/91,730.70
  6. Step 6: Final answer
    x = 74,572.47

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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.