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Finding the Fourth Proportional to 92,298.03, 138,355.03 and 39,003.45

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Solution

The fourth proportional to 92,298.03, 138,355.03 and 39,003.45 is: 58,466.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,298.03 : 138,355.03 = 39,003.45 : x
  2. Step 2: Convert to fraction form
    92,298.03/138,355.03 = 39,003.45/x
  3. Step 3: Cross multiply
    92,298.03x = 138,355.03 × 39,003.45
  4. Step 4: Simplify right side
    92,298.03x = 5,396,323,494.85
  5. Step 5: Solve for x
    x = 5,396,323,494.85/92,298.03
  6. Step 6: Final answer
    x = 58,466.29

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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.