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Finding the Fourth Proportional to 113,765.37, 170,648.99 and 74,570.67

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Solution

The fourth proportional to 113,765.37, 170,648.99 and 74,570.67 is: 111,856.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,765.37 : 170,648.99 = 74,570.67 : x
  2. Step 2: Convert to fraction form
    113,765.37/170,648.99 = 74,570.67/x
  3. Step 3: Cross multiply
    113,765.37x = 170,648.99 × 74,570.67
  4. Step 4: Simplify right side
    113,765.37x = 12,725,409,146.27
  5. Step 5: Solve for x
    x = 12,725,409,146.27/113,765.37
  6. Step 6: Final answer
    x = 111,856.61

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1.5x scale

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.