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Finding the Fourth Proportional to 231,715.90, 325,102.10 and 231,715.90

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Solution

The fourth proportional to 231,715.90, 325,102.10 and 231,715.90 is: 325,102.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,715.90 : 325,102.10 = 231,715.90 : x
  2. Step 2: Convert to fraction form
    231,715.90/325,102.10 = 231,715.90/x
  3. Step 3: Cross multiply
    231,715.90x = 325,102.10 × 231,715.90
  4. Step 4: Simplify right side
    231,715.90x = 75,331,325,693.39
  5. Step 5: Solve for x
    x = 75,331,325,693.39/231,715.90
  6. Step 6: Final answer
    x = 325,102.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.