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Finding the Fourth Proportional to 266,409.95, 367,651.01 and 145,558.72

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Solution

The fourth proportional to 266,409.95, 367,651.01 and 145,558.72 is: 200,873.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,409.95 : 367,651.01 = 145,558.72 : x
  2. Step 2: Convert to fraction form
    266,409.95/367,651.01 = 145,558.72/x
  3. Step 3: Cross multiply
    266,409.95x = 367,651.01 × 145,558.72
  4. Step 4: Simplify right side
    266,409.95x = 53,514,809,867.08
  5. Step 5: Solve for x
    x = 53,514,809,867.08/266,409.95
  6. Step 6: Final answer
    x = 200,873.92

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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.