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Finding the Fourth Proportional to 449,622.78, 674,463.33 and 134,111.58

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Solution

The fourth proportional to 449,622.78, 674,463.33 and 134,111.58 is: 201,176.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,622.78 : 674,463.33 = 134,111.58 : x
  2. Step 2: Convert to fraction form
    449,622.78/674,463.33 = 134,111.58/x
  3. Step 3: Cross multiply
    449,622.78x = 674,463.33 × 134,111.58
  4. Step 4: Simplify right side
    449,622.78x = 90,453,342,838.36
  5. Step 5: Solve for x
    x = 90,453,342,838.36/449,622.78
  6. Step 6: Final answer
    x = 201,176.07

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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.