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Finding the Fourth Proportional to 82,763.40, 124,196.40 and 43,348.80

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Solution

The fourth proportional to 82,763.40, 124,196.40 and 43,348.80 is: 65,050.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,763.40 : 124,196.40 = 43,348.80 : x
  2. Step 2: Convert to fraction form
    82,763.40/124,196.40 = 43,348.80/x
  3. Step 3: Cross multiply
    82,763.40x = 124,196.40 × 43,348.80
  4. Step 4: Simplify right side
    82,763.40x = 5,383,764,904.32
  5. Step 5: Solve for x
    x = 5,383,764,904.32/82,763.40
  6. Step 6: Final answer
    x = 65,050.07

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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.