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Finding the Fourth Proportional to 340,922.75, 511,302.11 and 104,267.48

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Solution

The fourth proportional to 340,922.75, 511,302.11 and 104,267.48 is: 156,376.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,922.75 : 511,302.11 = 104,267.48 : x
  2. Step 2: Convert to fraction form
    340,922.75/511,302.11 = 104,267.48/x
  3. Step 3: Cross multiply
    340,922.75x = 511,302.11 × 104,267.48
  4. Step 4: Simplify right side
    340,922.75x = 53,312,179,450.53
  5. Step 5: Solve for x
    x = 53,312,179,450.53/340,922.75
  6. Step 6: Final answer
    x = 156,376.13

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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.