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Finding the Fourth Proportional to 318,369.46, 477,451.22 and 105,089.46

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Solution

The fourth proportional to 318,369.46, 477,451.22 and 105,089.46 is: 157,600.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,369.46 : 477,451.22 = 105,089.46 : x
  2. Step 2: Convert to fraction form
    318,369.46/477,451.22 = 105,089.46/x
  3. Step 3: Cross multiply
    318,369.46x = 477,451.22 × 105,089.46
  4. Step 4: Simplify right side
    318,369.46x = 50,175,090,886.14
  5. Step 5: Solve for x
    x = 50,175,090,886.14/318,369.46
  6. Step 6: Final answer
    x = 157,600.20

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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.