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Finding the Fourth Proportional to 210,481.38, 315,684.12 and 60,684.89

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Solution

The fourth proportional to 210,481.38, 315,684.12 and 60,684.89 is: 91,016.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,481.38 : 315,684.12 = 60,684.89 : x
  2. Step 2: Convert to fraction form
    210,481.38/315,684.12 = 60,684.89/x
  3. Step 3: Cross multiply
    210,481.38x = 315,684.12 × 60,684.89
  4. Step 4: Simplify right side
    210,481.38x = 19,157,254,518.53
  5. Step 5: Solve for x
    x = 19,157,254,518.53/210,481.38
  6. Step 6: Final answer
    x = 91,016.39

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1.5x scale

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.