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Finding the Fourth Proportional to 461,247.54, 691,971.54 and 141,400.61

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Solution

The fourth proportional to 461,247.54, 691,971.54 and 141,400.61 is: 212,131.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,247.54 : 691,971.54 = 141,400.61 : x
  2. Step 2: Convert to fraction form
    461,247.54/691,971.54 = 141,400.61/x
  3. Step 3: Cross multiply
    461,247.54x = 691,971.54 × 141,400.61
  4. Step 4: Simplify right side
    461,247.54x = 97,845,197,858.64
  5. Step 5: Solve for x
    x = 97,845,197,858.64/461,247.54
  6. Step 6: Final answer
    x = 212,131.64

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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.