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Finding the Fourth Proportional to 88,051.60, 132,028.80 and 28,856.80

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Solution

The fourth proportional to 88,051.60, 132,028.80 and 28,856.80 is: 43,269.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,051.60 : 132,028.80 = 28,856.80 : x
  2. Step 2: Convert to fraction form
    88,051.60/132,028.80 = 28,856.80/x
  3. Step 3: Cross multiply
    88,051.60x = 132,028.80 × 28,856.80
  4. Step 4: Simplify right side
    88,051.60x = 3,809,928,675.84
  5. Step 5: Solve for x
    x = 3,809,928,675.84/88,051.60
  6. Step 6: Final answer
    x = 43,269.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.