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Finding the Fourth Proportional to 323,108.90, 484,438.91 and 143,096.23

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Solution

The fourth proportional to 323,108.90, 484,438.91 and 143,096.23 is: 214,544.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,108.90 : 484,438.91 = 143,096.23 : x
  2. Step 2: Convert to fraction form
    323,108.90/484,438.91 = 143,096.23/x
  3. Step 3: Cross multiply
    323,108.90x = 484,438.91 × 143,096.23
  4. Step 4: Simplify right side
    323,108.90x = 69,321,381,686.31
  5. Step 5: Solve for x
    x = 69,321,381,686.31/323,108.90
  6. Step 6: Final answer
    x = 214,544.95

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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.