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Finding the Fourth Proportional to 214,428.78, 295,718.01 and 133,863.72

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Solution

The fourth proportional to 214,428.78, 295,718.01 and 133,863.72 is: 184,611.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,428.78 : 295,718.01 = 133,863.72 : x
  2. Step 2: Convert to fraction form
    214,428.78/295,718.01 = 133,863.72/x
  3. Step 3: Cross multiply
    214,428.78x = 295,718.01 × 133,863.72
  4. Step 4: Simplify right side
    214,428.78x = 39,585,912,889.60
  5. Step 5: Solve for x
    x = 39,585,912,889.60/214,428.78
  6. Step 6: Final answer
    x = 184,611.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.