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Finding the Fourth Proportional to 188,408.64, 260,255.52 and 132,006.72

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Solution

The fourth proportional to 188,408.64, 260,255.52 and 132,006.72 is: 182,345.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,408.64 : 260,255.52 = 132,006.72 : x
  2. Step 2: Convert to fraction form
    188,408.64/260,255.52 = 132,006.72/x
  3. Step 3: Cross multiply
    188,408.64x = 260,255.52 × 132,006.72
  4. Step 4: Simplify right side
    188,408.64x = 34,355,477,557.09
  5. Step 5: Solve for x
    x = 34,355,477,557.09/188,408.64
  6. Step 6: Final answer
    x = 182,345.55

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1.5x scale

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.