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Finding the Fourth Proportional to 358,640.23, 538,084.90 and 159,100.74

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Solution

The fourth proportional to 358,640.23, 538,084.90 and 159,100.74 is: 238,706.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,640.23 : 538,084.90 = 159,100.74 : x
  2. Step 2: Convert to fraction form
    358,640.23/538,084.90 = 159,100.74/x
  3. Step 3: Cross multiply
    358,640.23x = 538,084.90 × 159,100.74
  4. Step 4: Simplify right side
    358,640.23x = 85,609,705,375.07
  5. Step 5: Solve for x
    x = 85,609,705,375.07/358,640.23
  6. Step 6: Final answer
    x = 238,706.37

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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.