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Finding the Fourth Proportional to 449,812.70, 674,837.35 and 161,653.45

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Solution

The fourth proportional to 449,812.70, 674,837.35 and 161,653.45 is: 242,522.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,812.70 : 674,837.35 = 161,653.45 : x
  2. Step 2: Convert to fraction form
    449,812.70/674,837.35 = 161,653.45/x
  3. Step 3: Cross multiply
    449,812.70x = 674,837.35 × 161,653.45
  4. Step 4: Simplify right side
    449,812.70x = 109,089,785,816.36
  5. Step 5: Solve for x
    x = 109,089,785,816.36/449,812.70
  6. Step 6: Final answer
    x = 242,522.69

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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.