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Finding the Fourth Proportional to 62,072.68, 92,943.76 and 42,389.68

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Solution

The fourth proportional to 62,072.68, 92,943.76 and 42,389.68 is: 63,471.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,072.68 : 92,943.76 = 42,389.68 : x
  2. Step 2: Convert to fraction form
    62,072.68/92,943.76 = 42,389.68/x
  3. Step 3: Cross multiply
    62,072.68x = 92,943.76 × 42,389.68
  4. Step 4: Simplify right side
    62,072.68x = 3,939,856,244.40
  5. Step 5: Solve for x
    x = 3,939,856,244.40/62,072.68
  6. Step 6: Final answer
    x = 63,471.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.