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Finding the Fourth Proportional to 159,176.37, 219,658.75 and 87,556.37

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Solution

The fourth proportional to 159,176.37, 219,658.75 and 87,556.37 is: 120,825.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,176.37 : 219,658.75 = 87,556.37 : x
  2. Step 2: Convert to fraction form
    159,176.37/219,658.75 = 87,556.37/x
  3. Step 3: Cross multiply
    159,176.37x = 219,658.75 × 87,556.37
  4. Step 4: Simplify right side
    159,176.37x = 19,232,522,788.74
  5. Step 5: Solve for x
    x = 19,232,522,788.74/159,176.37
  6. Step 6: Final answer
    x = 120,825.24

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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.