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Finding the Fourth Proportional to 425,847.11, 638,756.69 and 173,052.59

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Solution

The fourth proportional to 425,847.11, 638,756.69 and 173,052.59 is: 259,573.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,847.11 : 638,756.69 = 173,052.59 : x
  2. Step 2: Convert to fraction form
    425,847.11/638,756.69 = 173,052.59/x
  3. Step 3: Cross multiply
    425,847.11x = 638,756.69 × 173,052.59
  4. Step 4: Simplify right side
    425,847.11x = 110,538,495,525.28
  5. Step 5: Solve for x
    x = 110,538,495,525.28/425,847.11
  6. Step 6: Final answer
    x = 259,573.20

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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.