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Finding the Fourth Proportional to 132,374.56, 182,676.84 and 72,758.56

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Solution

The fourth proportional to 132,374.56, 182,676.84 and 72,758.56 is: 100,406.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,374.56 : 182,676.84 = 72,758.56 : x
  2. Step 2: Convert to fraction form
    132,374.56/182,676.84 = 72,758.56/x
  3. Step 3: Cross multiply
    132,374.56x = 182,676.84 × 72,758.56
  4. Step 4: Simplify right side
    132,374.56x = 13,291,303,823.75
  5. Step 5: Solve for x
    x = 13,291,303,823.75/132,374.56
  6. Step 6: Final answer
    x = 100,406.78

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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.