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Finding the Fourth Proportional to 132,211, 182,451.18 and 72,595

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Solution

The fourth proportional to 132,211, 182,451.18 and 72,595 is: 100,181.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,211 : 182,451.18 = 72,595 : x
  2. Step 2: Convert to fraction form
    132,211/182,451.18 = 72,595/x
  3. Step 3: Cross multiply
    132,211x = 182,451.18 × 72,595
  4. Step 4: Simplify right side
    132,211x = 13,245,043,412.10
  5. Step 5: Solve for x
    x = 13,245,043,412.10/132,211
  6. Step 6: Final answer
    x = 100,181.10

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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.