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Finding the Fourth Proportional to 202,279.90, 303,176.85 and 83,890.30

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Solution

The fourth proportional to 202,279.90, 303,176.85 and 83,890.30 is: 125,734.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,279.90 : 303,176.85 = 83,890.30 : x
  2. Step 2: Convert to fraction form
    202,279.90/303,176.85 = 83,890.30/x
  3. Step 3: Cross multiply
    202,279.90x = 303,176.85 × 83,890.30
  4. Step 4: Simplify right side
    202,279.90x = 25,433,596,899.56
  5. Step 5: Solve for x
    x = 25,433,596,899.56/202,279.90
  6. Step 6: Final answer
    x = 125,734.67

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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.