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Finding the Fourth Proportional to 67,347.66, 92,905.63 and 51,404.43

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Solution

The fourth proportional to 67,347.66, 92,905.63 and 51,404.43 is: 70,912.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,347.66 : 92,905.63 = 51,404.43 : x
  2. Step 2: Convert to fraction form
    67,347.66/92,905.63 = 51,404.43/x
  3. Step 3: Cross multiply
    67,347.66x = 92,905.63 × 51,404.43
  4. Step 4: Simplify right side
    67,347.66x = 4,775,760,953.94
  5. Step 5: Solve for x
    x = 4,775,760,953.94/67,347.66
  6. Step 6: Final answer
    x = 70,912.05

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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.