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Finding the Fourth Proportional to 210,480.88, 315,683.37 and 60,684.38

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Solution

The fourth proportional to 210,480.88, 315,683.37 and 60,684.38 is: 91,015.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,480.88 : 315,683.37 = 60,684.38 : x
  2. Step 2: Convert to fraction form
    210,480.88/315,683.37 = 60,684.38/x
  3. Step 3: Cross multiply
    210,480.88x = 315,683.37 × 60,684.38
  4. Step 4: Simplify right side
    210,480.88x = 19,157,049,584.76
  5. Step 5: Solve for x
    x = 19,157,049,584.76/210,480.88
  6. Step 6: Final answer
    x = 91,015.63

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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.