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Finding the Fourth Proportional to 230,706.78, 346,025.61 and 191,515.74

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Solution

The fourth proportional to 230,706.78, 346,025.61 and 191,515.74 is: 287,244.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,706.78 : 346,025.61 = 191,515.74 : x
  2. Step 2: Convert to fraction form
    230,706.78/346,025.61 = 191,515.74/x
  3. Step 3: Cross multiply
    230,706.78x = 346,025.61 × 191,515.74
  4. Step 4: Simplify right side
    230,706.78x = 66,269,350,758.10
  5. Step 5: Solve for x
    x = 66,269,350,758.10/230,706.78
  6. Step 6: Final answer
    x = 287,244.92

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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.