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Finding the Fourth Proportional to 235,131.18, 352,690.61 and 83,326.05

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Solution

The fourth proportional to 235,131.18, 352,690.61 and 83,326.05 is: 124,986.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,131.18 : 352,690.61 = 83,326.05 : x
  2. Step 2: Convert to fraction form
    235,131.18/352,690.61 = 83,326.05/x
  3. Step 3: Cross multiply
    235,131.18x = 352,690.61 × 83,326.05
  4. Step 4: Simplify right side
    235,131.18x = 29,388,314,986.76
  5. Step 5: Solve for x
    x = 29,388,314,986.76/235,131.18
  6. Step 6: Final answer
    x = 124,986.89

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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.