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Finding the Fourth Proportional to 489,192.30, 733,709.79 and 134,123.94

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Solution

The fourth proportional to 489,192.30, 733,709.79 and 134,123.94 is: 201,164.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,192.30 : 733,709.79 = 134,123.94 : x
  2. Step 2: Convert to fraction form
    489,192.30/733,709.79 = 134,123.94/x
  3. Step 3: Cross multiply
    489,192.30x = 733,709.79 × 134,123.94
  4. Step 4: Simplify right side
    489,192.30x = 98,408,047,851.37
  5. Step 5: Solve for x
    x = 98,408,047,851.37/489,192.30
  6. Step 6: Final answer
    x = 201,164.34

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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.