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Finding the Fourth Proportional to 140,464.53, 210,494.70 and 60,480.54

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Solution

The fourth proportional to 140,464.53, 210,494.70 and 60,480.54 is: 90,633.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,464.53 : 210,494.70 = 60,480.54 : x
  2. Step 2: Convert to fraction form
    140,464.53/210,494.70 = 60,480.54/x
  3. Step 3: Cross multiply
    140,464.53x = 210,494.70 × 60,480.54
  4. Step 4: Simplify right side
    140,464.53x = 12,730,833,123.14
  5. Step 5: Solve for x
    x = 12,730,833,123.14/140,464.53
  6. Step 6: Final answer
    x = 90,633.79

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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.