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Finding the Fourth Proportional to 140,671.89, 211,008.21 and 35,490.86

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Solution

The fourth proportional to 140,671.89, 211,008.21 and 35,490.86 is: 53,236.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,671.89 : 211,008.21 = 35,490.86 : x
  2. Step 2: Convert to fraction form
    140,671.89/211,008.21 = 35,490.86/x
  3. Step 3: Cross multiply
    140,671.89x = 211,008.21 × 35,490.86
  4. Step 4: Simplify right side
    140,671.89x = 7,488,862,443.11
  5. Step 5: Solve for x
    x = 7,488,862,443.11/140,671.89
  6. Step 6: Final answer
    x = 53,236.38

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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.