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Finding the Fourth Proportional to 481,720.16, 722,314.80 and 165,916.64

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Solution

The fourth proportional to 481,720.16, 722,314.80 and 165,916.64 is: 248,783.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,720.16 : 722,314.80 = 165,916.64 : x
  2. Step 2: Convert to fraction form
    481,720.16/722,314.80 = 165,916.64/x
  3. Step 3: Cross multiply
    481,720.16x = 722,314.80 × 165,916.64
  4. Step 4: Simplify right side
    481,720.16x = 119,844,044,638.27
  5. Step 5: Solve for x
    x = 119,844,044,638.27/481,720.16
  6. Step 6: Final answer
    x = 248,783.54

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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.