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Finding the Fourth Proportional to 117,535.40, 176,475.90 and 82,629.80

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Solution

The fourth proportional to 117,535.40, 176,475.90 and 82,629.80 is: 124,066.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,535.40 : 176,475.90 = 82,629.80 : x
  2. Step 2: Convert to fraction form
    117,535.40/176,475.90 = 82,629.80/x
  3. Step 3: Cross multiply
    117,535.40x = 176,475.90 × 82,629.80
  4. Step 4: Simplify right side
    117,535.40x = 14,582,168,321.82
  5. Step 5: Solve for x
    x = 14,582,168,321.82/117,535.40
  6. Step 6: Final answer
    x = 124,066.18

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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.