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Finding the Fourth Proportional to 129,234.61, 193,852.04 and 40,495.04

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Solution

The fourth proportional to 129,234.61, 193,852.04 and 40,495.04 is: 60,742.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,234.61 : 193,852.04 = 40,495.04 : x
  2. Step 2: Convert to fraction form
    129,234.61/193,852.04 = 40,495.04/x
  3. Step 3: Cross multiply
    129,234.61x = 193,852.04 × 40,495.04
  4. Step 4: Simplify right side
    129,234.61x = 7,850,045,669.09
  5. Step 5: Solve for x
    x = 7,850,045,669.09/129,234.61
  6. Step 6: Final answer
    x = 60,742.59

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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.