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Finding the Fourth Proportional to 60,608.46, 90,909.45 and 21,164.70

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Solution

The fourth proportional to 60,608.46, 90,909.45 and 21,164.70 is: 31,745.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,608.46 : 90,909.45 = 21,164.70 : x
  2. Step 2: Convert to fraction form
    60,608.46/90,909.45 = 21,164.70/x
  3. Step 3: Cross multiply
    60,608.46x = 90,909.45 × 21,164.70
  4. Step 4: Simplify right side
    60,608.46x = 1,924,071,236.42
  5. Step 5: Solve for x
    x = 1,924,071,236.42/60,608.46
  6. Step 6: Final answer
    x = 31,745.92

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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.