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Finding the Fourth Proportional to 92,755.79, 139,139.21 and 35,830.13

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Solution

The fourth proportional to 92,755.79, 139,139.21 and 35,830.13 is: 53,747.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,755.79 : 139,139.21 = 35,830.13 : x
  2. Step 2: Convert to fraction form
    92,755.79/139,139.21 = 35,830.13/x
  3. Step 3: Cross multiply
    92,755.79x = 139,139.21 × 35,830.13
  4. Step 4: Simplify right side
    92,755.79x = 4,985,375,982.40
  5. Step 5: Solve for x
    x = 4,985,375,982.40/92,755.79
  6. Step 6: Final answer
    x = 53,747.33

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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.