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Finding the Fourth Proportional to 315,670.44, 473,575.61 and 91,013.34

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Solution

The fourth proportional to 315,670.44, 473,575.61 and 91,013.34 is: 136,540.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,670.44 : 473,575.61 = 91,013.34 : x
  2. Step 2: Convert to fraction form
    315,670.44/473,575.61 = 91,013.34/x
  3. Step 3: Cross multiply
    315,670.44x = 473,575.61 × 91,013.34
  4. Step 4: Simplify right side
    315,670.44x = 43,101,695,185.69
  5. Step 5: Solve for x
    x = 43,101,695,185.69/315,670.44
  6. Step 6: Final answer
    x = 136,540.17

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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.