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Finding the Fourth Proportional to 511,912.92, 767,981.43 and 156,954.63

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Solution

The fourth proportional to 511,912.92, 767,981.43 and 156,954.63 is: 235,466.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,912.92 : 767,981.43 = 156,954.63 : x
  2. Step 2: Convert to fraction form
    511,912.92/767,981.43 = 156,954.63/x
  3. Step 3: Cross multiply
    511,912.92x = 767,981.43 × 156,954.63
  4. Step 4: Simplify right side
    511,912.92x = 120,538,241,192.52
  5. Step 5: Solve for x
    x = 120,538,241,192.52/511,912.92
  6. Step 6: Final answer
    x = 235,466.30

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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.