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Finding the Fourth Proportional to 173,960.60, 260,940.90 and 90,843.80

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Solution

The fourth proportional to 173,960.60, 260,940.90 and 90,843.80 is: 136,265.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,960.60 : 260,940.90 = 90,843.80 : x
  2. Step 2: Convert to fraction form
    173,960.60/260,940.90 = 90,843.80/x
  3. Step 3: Cross multiply
    173,960.60x = 260,940.90 × 90,843.80
  4. Step 4: Simplify right side
    173,960.60x = 23,704,862,931.42
  5. Step 5: Solve for x
    x = 23,704,862,931.42/173,960.60
  6. Step 6: Final answer
    x = 136,265.70

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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.