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Finding the Fourth Proportional to 443,955.74, 665,822.88 and 174,138.71

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Solution

The fourth proportional to 443,955.74, 665,822.88 and 174,138.71 is: 261,164.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,955.74 : 665,822.88 = 174,138.71 : x
  2. Step 2: Convert to fraction form
    443,955.74/665,822.88 = 174,138.71/x
  3. Step 3: Cross multiply
    443,955.74x = 665,822.88 × 174,138.71
  4. Step 4: Simplify right side
    443,955.74x = 115,945,534,082.57
  5. Step 5: Solve for x
    x = 115,945,534,082.57/443,955.74
  6. Step 6: Final answer
    x = 261,164.63

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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.