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Finding the Fourth Proportional to 67,038.67, 100,594.95 and 40,761.87

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Solution

The fourth proportional to 67,038.67, 100,594.95 and 40,761.87 is: 61,165.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,038.67 : 100,594.95 = 40,761.87 : x
  2. Step 2: Convert to fraction form
    67,038.67/100,594.95 = 40,761.87/x
  3. Step 3: Cross multiply
    67,038.67x = 100,594.95 × 40,761.87
  4. Step 4: Simplify right side
    67,038.67x = 4,100,437,744.47
  5. Step 5: Solve for x
    x = 4,100,437,744.47/67,038.67
  6. Step 6: Final answer
    x = 61,165.26

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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.