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Finding the Fourth Proportional to 425,716.83, 638,575.25 and 110,172.83

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Solution

The fourth proportional to 425,716.83, 638,575.25 and 110,172.83 is: 165,259.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,716.83 : 638,575.25 = 110,172.83 : x
  2. Step 2: Convert to fraction form
    425,716.83/638,575.25 = 110,172.83/x
  3. Step 3: Cross multiply
    425,716.83x = 638,575.25 × 110,172.83
  4. Step 4: Simplify right side
    425,716.83x = 70,353,638,716.72
  5. Step 5: Solve for x
    x = 70,353,638,716.72/425,716.83
  6. Step 6: Final answer
    x = 165,259.24

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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.