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Finding the Fourth Proportional to 269,666.90, 404,646.15 and 111,911.30

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Solution

The fourth proportional to 269,666.90, 404,646.15 and 111,911.30 is: 167,927.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,666.90 : 404,646.15 = 111,911.30 : x
  2. Step 2: Convert to fraction form
    269,666.90/404,646.15 = 111,911.30/x
  3. Step 3: Cross multiply
    269,666.90x = 404,646.15 × 111,911.30
  4. Step 4: Simplify right side
    269,666.90x = 45,284,476,686.50
  5. Step 5: Solve for x
    x = 45,284,476,686.50/269,666.90
  6. Step 6: Final answer
    x = 167,927.46

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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.