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Finding the Fourth Proportional to 132,188.45, 182,514.87 and 81,269.51

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Solution

The fourth proportional to 132,188.45, 182,514.87 and 81,269.51 is: 112,210.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,188.45 : 182,514.87 = 81,269.51 : x
  2. Step 2: Convert to fraction form
    132,188.45/182,514.87 = 81,269.51/x
  3. Step 3: Cross multiply
    132,188.45x = 182,514.87 × 81,269.51
  4. Step 4: Simplify right side
    132,188.45x = 14,832,893,140.04
  5. Step 5: Solve for x
    x = 14,832,893,140.04/132,188.45
  6. Step 6: Final answer
    x = 112,210.21

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.