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Finding the Fourth Proportional to 190,967.80, 267,005 and 190,967.80

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Solution

The fourth proportional to 190,967.80, 267,005 and 190,967.80 is: 267,005

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,967.80 : 267,005 = 190,967.80 : x
  2. Step 2: Convert to fraction form
    190,967.80/267,005 = 190,967.80/x
  3. Step 3: Cross multiply
    190,967.80x = 267,005 × 190,967.80
  4. Step 4: Simplify right side
    190,967.80x = 50,989,357,439
  5. Step 5: Solve for x
    x = 50,989,357,439/190,967.80
  6. Step 6: Final answer
    x = 267,005

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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.