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Finding the Fourth Proportional to 190,940.80, 266,967.20 and 190,940.80

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Solution

The fourth proportional to 190,940.80, 266,967.20 and 190,940.80 is: 266,967.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,940.80 : 266,967.20 = 190,940.80 : x
  2. Step 2: Convert to fraction form
    190,940.80/266,967.20 = 190,940.80/x
  3. Step 3: Cross multiply
    190,940.80x = 266,967.20 × 190,940.80
  4. Step 4: Simplify right side
    190,940.80x = 50,974,930,741.76
  5. Step 5: Solve for x
    x = 50,974,930,741.76/190,940.80
  6. Step 6: Final answer
    x = 266,967.20

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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.