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Finding the Fourth Proportional to 141,010.68, 194,594.22 and 87,285

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Solution

The fourth proportional to 141,010.68, 194,594.22 and 87,285 is: 120,452.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,010.68 : 194,594.22 = 87,285 : x
  2. Step 2: Convert to fraction form
    141,010.68/194,594.22 = 87,285/x
  3. Step 3: Cross multiply
    141,010.68x = 194,594.22 × 87,285
  4. Step 4: Simplify right side
    141,010.68x = 16,985,156,492.70
  5. Step 5: Solve for x
    x = 16,985,156,492.70/141,010.68
  6. Step 6: Final answer
    x = 120,452.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.