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Finding the Fourth Proportional to 329,638.67, 494,477.13 and 127,235.93

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Solution

The fourth proportional to 329,638.67, 494,477.13 and 127,235.93 is: 190,861.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,638.67 : 494,477.13 = 127,235.93 : x
  2. Step 2: Convert to fraction form
    329,638.67/494,477.13 = 127,235.93/x
  3. Step 3: Cross multiply
    329,638.67x = 494,477.13 × 127,235.93
  4. Step 4: Simplify right side
    329,638.67x = 62,915,255,026.90
  5. Step 5: Solve for x
    x = 62,915,255,026.90/329,638.67
  6. Step 6: Final answer
    x = 190,861.27

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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.