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Finding the Fourth Proportional to 157,390.01, 217,198.24 and 85,770.04

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Solution

The fourth proportional to 157,390.01, 217,198.24 and 85,770.04 is: 118,362.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,390.01 : 217,198.24 = 85,770.04 : x
  2. Step 2: Convert to fraction form
    157,390.01/217,198.24 = 85,770.04/x
  3. Step 3: Cross multiply
    157,390.01x = 217,198.24 × 85,770.04
  4. Step 4: Simplify right side
    157,390.01x = 18,629,100,975.31
  5. Step 5: Solve for x
    x = 18,629,100,975.31/157,390.01
  6. Step 6: Final answer
    x = 118,362.67

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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.