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Finding the Fourth Proportional to 92,336.68, 138,485.10 and 29,161.72

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Solution

The fourth proportional to 92,336.68, 138,485.10 and 29,161.72 is: 43,736.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,336.68 : 138,485.10 = 29,161.72 : x
  2. Step 2: Convert to fraction form
    92,336.68/138,485.10 = 29,161.72/x
  3. Step 3: Cross multiply
    92,336.68x = 138,485.10 × 29,161.72
  4. Step 4: Simplify right side
    92,336.68x = 4,038,463,710.37
  5. Step 5: Solve for x
    x = 4,038,463,710.37/92,336.68
  6. Step 6: Final answer
    x = 43,736.29

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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.