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Finding the Fourth Proportional to 283,418.10, 425,114.85 and 105,926.64

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Solution

The fourth proportional to 283,418.10, 425,114.85 and 105,926.64 is: 158,885.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,418.10 : 425,114.85 = 105,926.64 : x
  2. Step 2: Convert to fraction form
    283,418.10/425,114.85 = 105,926.64/x
  3. Step 3: Cross multiply
    283,418.10x = 425,114.85 × 105,926.64
  4. Step 4: Simplify right side
    283,418.10x = 45,030,987,674.60
  5. Step 5: Solve for x
    x = 45,030,987,674.60/283,418.10
  6. Step 6: Final answer
    x = 158,885.36

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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.