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Finding the Fourth Proportional to 425,796.72, 638,681.16 and 173,002.44

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Solution

The fourth proportional to 425,796.72, 638,681.16 and 173,002.44 is: 259,498.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,796.72 : 638,681.16 = 173,002.44 : x
  2. Step 2: Convert to fraction form
    425,796.72/638,681.16 = 173,002.44/x
  3. Step 3: Cross multiply
    425,796.72x = 638,681.16 × 173,002.44
  4. Step 4: Simplify right side
    425,796.72x = 110,493,402,105.84
  5. Step 5: Solve for x
    x = 110,493,402,105.84/425,796.72
  6. Step 6: Final answer
    x = 259,498.01

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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.