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Finding the Fourth Proportional to 269,421.90, 404,132.85 and 164,445.90

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Solution

The fourth proportional to 269,421.90, 404,132.85 and 164,445.90 is: 246,668.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,421.90 : 404,132.85 = 164,445.90 : x
  2. Step 2: Convert to fraction form
    269,421.90/404,132.85 = 164,445.90/x
  3. Step 3: Cross multiply
    269,421.90x = 404,132.85 × 164,445.90
  4. Step 4: Simplify right side
    269,421.90x = 66,457,990,237.82
  5. Step 5: Solve for x
    x = 66,457,990,237.82/269,421.90
  6. Step 6: Final answer
    x = 246,668.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.