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Finding the Fourth Proportional to 266,463.90, 367,709.21 and 145,609.35

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Solution

The fourth proportional to 266,463.90, 367,709.21 and 145,609.35 is: 200,934.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,463.90 : 367,709.21 = 145,609.35 : x
  2. Step 2: Convert to fraction form
    266,463.90/367,709.21 = 145,609.35/x
  3. Step 3: Cross multiply
    266,463.90x = 367,709.21 × 145,609.35
  4. Step 4: Simplify right side
    266,463.90x = 53,541,898,329.07
  5. Step 5: Solve for x
    x = 53,541,898,329.07/266,463.90
  6. Step 6: Final answer
    x = 200,934.90

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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.