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Finding the Fourth Proportional to 67,220, 92,763.60 and 37,419.04

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Solution

The fourth proportional to 67,220, 92,763.60 and 37,419.04 is: 51,638.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,220 : 92,763.60 = 37,419.04 : x
  2. Step 2: Convert to fraction form
    67,220/92,763.60 = 37,419.04/x
  3. Step 3: Cross multiply
    67,220x = 92,763.60 × 37,419.04
  4. Step 4: Simplify right side
    67,220x = 3,471,124,858.94
  5. Step 5: Solve for x
    x = 3,471,124,858.94/67,220
  6. Step 6: Final answer
    x = 51,638.28

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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.