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Finding the Fourth Proportional to 75,626.36, 104,383.62 and 45,413

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Solution

The fourth proportional to 75,626.36, 104,383.62 and 45,413 is: 62,681.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,626.36 : 104,383.62 = 45,413 : x
  2. Step 2: Convert to fraction form
    75,626.36/104,383.62 = 45,413/x
  3. Step 3: Cross multiply
    75,626.36x = 104,383.62 × 45,413
  4. Step 4: Simplify right side
    75,626.36x = 4,740,373,335.06
  5. Step 5: Solve for x
    x = 4,740,373,335.06/75,626.36
  6. Step 6: Final answer
    x = 62,681.50

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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.