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Finding the Fourth Proportional to 158,874.63, 219,266.42 and 91,806.63

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Solution

The fourth proportional to 158,874.63, 219,266.42 and 91,806.63 is: 126,704.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,874.63 : 219,266.42 = 91,806.63 : x
  2. Step 2: Convert to fraction form
    158,874.63/219,266.42 = 91,806.63/x
  3. Step 3: Cross multiply
    158,874.63x = 219,266.42 × 91,806.63
  4. Step 4: Simplify right side
    158,874.63x = 20,130,111,092.36
  5. Step 5: Solve for x
    x = 20,130,111,092.36/158,874.63
  6. Step 6: Final answer
    x = 126,704.38

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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.