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Finding the Fourth Proportional to 202,170.20, 302,672.10 and 123,438.20

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Solution

The fourth proportional to 202,170.20, 302,672.10 and 123,438.20 is: 184,801.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,170.20 : 302,672.10 = 123,438.20 : x
  2. Step 2: Convert to fraction form
    202,170.20/302,672.10 = 123,438.20/x
  3. Step 3: Cross multiply
    202,170.20x = 302,672.10 × 123,438.20
  4. Step 4: Simplify right side
    202,170.20x = 37,361,299,214.22
  5. Step 5: Solve for x
    x = 37,361,299,214.22/202,170.20
  6. Step 6: Final answer
    x = 184,801.22

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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.