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Finding the Fourth Proportional to 131,903.29, 182,029.88 and 80,944.16

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Solution

The fourth proportional to 131,903.29, 182,029.88 and 80,944.16 is: 111,705.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,903.29 : 182,029.88 = 80,944.16 : x
  2. Step 2: Convert to fraction form
    131,903.29/182,029.88 = 80,944.16/x
  3. Step 3: Cross multiply
    131,903.29x = 182,029.88 × 80,944.16
  4. Step 4: Simplify right side
    131,903.29x = 14,734,256,047.63
  5. Step 5: Solve for x
    x = 14,734,256,047.63/131,903.29
  6. Step 6: Final answer
    x = 111,705.00

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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.