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Finding the Fourth Proportional to 315,670.33, 473,575.46 and 91,013.24

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Solution

The fourth proportional to 315,670.33, 473,575.46 and 91,013.24 is: 136,540.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,670.33 : 473,575.46 = 91,013.24 : x
  2. Step 2: Convert to fraction form
    315,670.33/473,575.46 = 91,013.24/x
  3. Step 3: Cross multiply
    315,670.33x = 473,575.46 × 91,013.24
  4. Step 4: Simplify right side
    315,670.33x = 43,101,635,576.05
  5. Step 5: Solve for x
    x = 43,101,635,576.05/315,670.33
  6. Step 6: Final answer
    x = 136,540.03

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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.