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Finding the Fourth Proportional to 318,604.74, 439,671.06 and 175,361.70

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Solution

The fourth proportional to 318,604.74, 439,671.06 and 175,361.70 is: 241,997.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,604.74 : 439,671.06 = 175,361.70 : x
  2. Step 2: Convert to fraction form
    318,604.74/439,671.06 = 175,361.70/x
  3. Step 3: Cross multiply
    318,604.74x = 439,671.06 × 175,361.70
  4. Step 4: Simplify right side
    318,604.74x = 77,101,464,522.40
  5. Step 5: Solve for x
    x = 77,101,464,522.40/318,604.74
  6. Step 6: Final answer
    x = 241,997.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.