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Finding the Fourth Proportional to 52,136.20, 72,903.20 and 52,136.20

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Solution

The fourth proportional to 52,136.20, 72,903.20 and 52,136.20 is: 72,903.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,136.20 : 72,903.20 = 52,136.20 : x
  2. Step 2: Convert to fraction form
    52,136.20/72,903.20 = 52,136.20/x
  3. Step 3: Cross multiply
    52,136.20x = 72,903.20 × 52,136.20
  4. Step 4: Simplify right side
    52,136.20x = 3,800,895,815.84
  5. Step 5: Solve for x
    x = 3,800,895,815.84/52,136.20
  6. Step 6: Final answer
    x = 72,903.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.