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Finding the Fourth Proportional to 508,136.76, 762,205.08 and 134,163

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Solution

The fourth proportional to 508,136.76, 762,205.08 and 134,163 is: 201,244.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,136.76 : 762,205.08 = 134,163 : x
  2. Step 2: Convert to fraction form
    508,136.76/762,205.08 = 134,163/x
  3. Step 3: Cross multiply
    508,136.76x = 762,205.08 × 134,163
  4. Step 4: Simplify right side
    508,136.76x = 102,259,720,148.04
  5. Step 5: Solve for x
    x = 102,259,720,148.04/508,136.76
  6. Step 6: Final answer
    x = 201,244.48

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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.