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Finding the Fourth Proportional to 129,773.39, 179,087.28 and 73,184.77

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Solution

The fourth proportional to 129,773.39, 179,087.28 and 73,184.77 is: 100,994.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,773.39 : 179,087.28 = 73,184.77 : x
  2. Step 2: Convert to fraction form
    129,773.39/179,087.28 = 73,184.77/x
  3. Step 3: Cross multiply
    129,773.39x = 179,087.28 × 73,184.77
  4. Step 4: Simplify right side
    129,773.39x = 13,106,460,544.61
  5. Step 5: Solve for x
    x = 13,106,460,544.61/129,773.39
  6. Step 6: Final answer
    x = 100,994.98

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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.