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Finding the Fourth Proportional to 323,510.60, 485,265.90 and 164,078.30

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Solution

The fourth proportional to 323,510.60, 485,265.90 and 164,078.30 is: 246,117.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,510.60 : 485,265.90 = 164,078.30 : x
  2. Step 2: Convert to fraction form
    323,510.60/485,265.90 = 164,078.30/x
  3. Step 3: Cross multiply
    323,510.60x = 485,265.90 × 164,078.30
  4. Step 4: Simplify right side
    323,510.60x = 79,621,603,919.97
  5. Step 5: Solve for x
    x = 79,621,603,919.97/323,510.60
  6. Step 6: Final answer
    x = 246,117.45

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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.