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Finding the Fourth Proportional to 110,529.60, 165,441.60 and 87,201.60

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Solution

The fourth proportional to 110,529.60, 165,441.60 and 87,201.60 is: 130,524.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,529.60 : 165,441.60 = 87,201.60 : x
  2. Step 2: Convert to fraction form
    110,529.60/165,441.60 = 87,201.60/x
  3. Step 3: Cross multiply
    110,529.60x = 165,441.60 × 87,201.60
  4. Step 4: Simplify right side
    110,529.60x = 14,426,772,226.56
  5. Step 5: Solve for x
    x = 14,426,772,226.56/110,529.60
  6. Step 6: Final answer
    x = 130,524.06

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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.