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Finding the Fourth Proportional to 132,920.42, 183,422.88 and 75,551.76

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Solution

The fourth proportional to 132,920.42, 183,422.88 and 75,551.76 is: 104,257.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,920.42 : 183,422.88 = 75,551.76 : x
  2. Step 2: Convert to fraction form
    132,920.42/183,422.88 = 75,551.76/x
  3. Step 3: Cross multiply
    132,920.42x = 183,422.88 × 75,551.76
  4. Step 4: Simplify right side
    132,920.42x = 13,857,921,408.27
  5. Step 5: Solve for x
    x = 13,857,921,408.27/132,920.42
  6. Step 6: Final answer
    x = 104,257.28

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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.