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Finding the Fourth Proportional to 90,693.63, 136,040.76 and 27,514.29

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Solution

The fourth proportional to 90,693.63, 136,040.76 and 27,514.29 is: 41,271.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,693.63 : 136,040.76 = 27,514.29 : x
  2. Step 2: Convert to fraction form
    90,693.63/136,040.76 = 27,514.29/x
  3. Step 3: Cross multiply
    90,693.63x = 136,040.76 × 27,514.29
  4. Step 4: Simplify right side
    90,693.63x = 3,743,064,922.46
  5. Step 5: Solve for x
    x = 3,743,064,922.46/90,693.63
  6. Step 6: Final answer
    x = 41,271.53

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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.