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Finding the Fourth Proportional to 313,311.68, 469,915.68 and 102,951.44

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Solution

The fourth proportional to 313,311.68, 469,915.68 and 102,951.44 is: 154,410.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,311.68 : 469,915.68 = 102,951.44 : x
  2. Step 2: Convert to fraction form
    313,311.68/469,915.68 = 102,951.44/x
  3. Step 3: Cross multiply
    313,311.68x = 469,915.68 × 102,951.44
  4. Step 4: Simplify right side
    313,311.68x = 48,378,495,934.58
  5. Step 5: Solve for x
    x = 48,378,495,934.58/313,311.68
  6. Step 6: Final answer
    x = 154,410.13

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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.