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Finding the Fourth Proportional to 318,012.45, 476,722.22 and 107,503.17

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Solution

The fourth proportional to 318,012.45, 476,722.22 and 107,503.17 is: 161,154.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,012.45 : 476,722.22 = 107,503.17 : x
  2. Step 2: Convert to fraction form
    318,012.45/476,722.22 = 107,503.17/x
  3. Step 3: Cross multiply
    318,012.45x = 476,722.22 × 107,503.17
  4. Step 4: Simplify right side
    318,012.45x = 51,249,149,321.92
  5. Step 5: Solve for x
    x = 51,249,149,321.92/318,012.45
  6. Step 6: Final answer
    x = 161,154.54

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1.5x scale

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.