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Finding the Fourth Proportional to 190,956.80, 266,989.60 and 190,956.80

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Solution

The fourth proportional to 190,956.80, 266,989.60 and 190,956.80 is: 266,989.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,956.80 : 266,989.60 = 190,956.80 : x
  2. Step 2: Convert to fraction form
    190,956.80/266,989.60 = 190,956.80/x
  3. Step 3: Cross multiply
    190,956.80x = 266,989.60 × 190,956.80
  4. Step 4: Simplify right side
    190,956.80x = 50,983,479,649.28
  5. Step 5: Solve for x
    x = 50,983,479,649.28/190,956.80
  6. Step 6: Final answer
    x = 266,989.60

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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.