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Finding the Fourth Proportional to 313,266.10, 469,899.15 and 76,611.10

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Solution

The fourth proportional to 313,266.10, 469,899.15 and 76,611.10 is: 114,916.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,266.10 : 469,899.15 = 76,611.10 : x
  2. Step 2: Convert to fraction form
    313,266.10/469,899.15 = 76,611.10/x
  3. Step 3: Cross multiply
    313,266.10x = 469,899.15 × 76,611.10
  4. Step 4: Simplify right side
    313,266.10x = 35,999,490,770.57
  5. Step 5: Solve for x
    x = 35,999,490,770.57/313,266.10
  6. Step 6: Final answer
    x = 114,916.65

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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.