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Finding the Fourth Proportional to 201,614.80, 302,422.20 and 83,225.20

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Solution

The fourth proportional to 201,614.80, 302,422.20 and 83,225.20 is: 124,837.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,614.80 : 302,422.20 = 83,225.20 : x
  2. Step 2: Convert to fraction form
    201,614.80/302,422.20 = 83,225.20/x
  3. Step 3: Cross multiply
    201,614.80x = 302,422.20 × 83,225.20
  4. Step 4: Simplify right side
    201,614.80x = 25,169,148,079.44
  5. Step 5: Solve for x
    x = 25,169,148,079.44/201,614.80
  6. Step 6: Final answer
    x = 124,837.80

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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.