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Finding the Fourth Proportional to 443,922.36, 665,889.69 and 144,404.51

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Solution

The fourth proportional to 443,922.36, 665,889.69 and 144,404.51 is: 216,608.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,922.36 : 665,889.69 = 144,404.51 : x
  2. Step 2: Convert to fraction form
    443,922.36/665,889.69 = 144,404.51/x
  3. Step 3: Cross multiply
    443,922.36x = 665,889.69 × 144,404.51
  4. Step 4: Simplify right side
    443,922.36x = 96,157,474,398.50
  5. Step 5: Solve for x
    x = 96,157,474,398.50/443,922.36
  6. Step 6: Final answer
    x = 216,608.77

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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.