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Finding the Fourth Proportional to 132,763.88, 183,216.26 and 72,334.52

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Solution

The fourth proportional to 132,763.88, 183,216.26 and 72,334.52 is: 99,822.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,763.88 : 183,216.26 = 72,334.52 : x
  2. Step 2: Convert to fraction form
    132,763.88/183,216.26 = 72,334.52/x
  3. Step 3: Cross multiply
    132,763.88x = 183,216.26 × 72,334.52
  4. Step 4: Simplify right side
    132,763.88x = 13,252,860,175.11
  5. Step 5: Solve for x
    x = 13,252,860,175.11/132,763.88
  6. Step 6: Final answer
    x = 99,822.78

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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.