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Finding the Fourth Proportional to 211,246.60, 316,869.90 and 197,249.80

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Solution

The fourth proportional to 211,246.60, 316,869.90 and 197,249.80 is: 295,874.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,246.60 : 316,869.90 = 197,249.80 : x
  2. Step 2: Convert to fraction form
    211,246.60/316,869.90 = 197,249.80/x
  3. Step 3: Cross multiply
    211,246.60x = 316,869.90 × 197,249.80
  4. Step 4: Simplify right side
    211,246.60x = 62,502,524,401.02
  5. Step 5: Solve for x
    x = 62,502,524,401.02/211,246.60
  6. Step 6: Final answer
    x = 295,874.70

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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.