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Finding the Fourth Proportional to 88,859.56, 122,637 and 51,133

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Solution

The fourth proportional to 88,859.56, 122,637 and 51,133 is: 70,569.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,859.56 : 122,637 = 51,133 : x
  2. Step 2: Convert to fraction form
    88,859.56/122,637 = 51,133/x
  3. Step 3: Cross multiply
    88,859.56x = 122,637 × 51,133
  4. Step 4: Simplify right side
    88,859.56x = 6,270,797,721
  5. Step 5: Solve for x
    x = 6,270,797,721/88,859.56
  6. Step 6: Final answer
    x = 70,569.76

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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.