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Finding the Fourth Proportional to 266,216.66, 367,393.87 and 145,369.16

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Solution

The fourth proportional to 266,216.66, 367,393.87 and 145,369.16 is: 200,617.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,216.66 : 367,393.87 = 145,369.16 : x
  2. Step 2: Convert to fraction form
    266,216.66/367,393.87 = 145,369.16/x
  3. Step 3: Cross multiply
    266,216.66x = 367,393.87 × 145,369.16
  4. Step 4: Simplify right side
    266,216.66x = 53,407,738,271.05
  5. Step 5: Solve for x
    x = 53,407,738,271.05/266,216.66
  6. Step 6: Final answer
    x = 200,617.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.