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Finding the Fourth Proportional to 188,246.67, 259,784.60 and 103,364.07

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Solution

The fourth proportional to 188,246.67, 259,784.60 and 103,364.07 is: 142,644.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,246.67 : 259,784.60 = 103,364.07 : x
  2. Step 2: Convert to fraction form
    188,246.67/259,784.60 = 103,364.07/x
  3. Step 3: Cross multiply
    188,246.67x = 259,784.60 × 103,364.07
  4. Step 4: Simplify right side
    188,246.67x = 26,852,393,062.50
  5. Step 5: Solve for x
    x = 26,852,393,062.50/188,246.67
  6. Step 6: Final answer
    x = 142,644.72

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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.