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Finding the Fourth Proportional to 61,415.80, 92,069.70 and 41,630.20

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Solution

The fourth proportional to 61,415.80, 92,069.70 and 41,630.20 is: 62,408.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,415.80 : 92,069.70 = 41,630.20 : x
  2. Step 2: Convert to fraction form
    61,415.80/92,069.70 = 41,630.20/x
  3. Step 3: Cross multiply
    61,415.80x = 92,069.70 × 41,630.20
  4. Step 4: Simplify right side
    61,415.80x = 3,832,880,024.94
  5. Step 5: Solve for x
    x = 3,832,880,024.94/61,415.80
  6. Step 6: Final answer
    x = 62,408.70

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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.