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Finding the Fourth Proportional to 104,423.31, 144,104.31 and 56,676.66

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Solution

The fourth proportional to 104,423.31, 144,104.31 and 56,676.66 is: 78,213.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,423.31 : 144,104.31 = 56,676.66 : x
  2. Step 2: Convert to fraction form
    104,423.31/144,104.31 = 56,676.66/x
  3. Step 3: Cross multiply
    104,423.31x = 144,104.31 × 56,676.66
  4. Step 4: Simplify right side
    104,423.31x = 8,167,351,522.80
  5. Step 5: Solve for x
    x = 8,167,351,522.80/104,423.31
  6. Step 6: Final answer
    x = 78,213.87

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1.5x scale

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.