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Finding the Fourth Proportional to 201,910.41, 278,652.60 and 111,284.82

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Solution

The fourth proportional to 201,910.41, 278,652.60 and 111,284.82 is: 153,582.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,910.41 : 278,652.60 = 111,284.82 : x
  2. Step 2: Convert to fraction form
    201,910.41/278,652.60 = 111,284.82/x
  3. Step 3: Cross multiply
    201,910.41x = 278,652.60 × 111,284.82
  4. Step 4: Simplify right side
    201,910.41x = 31,009,804,433.53
  5. Step 5: Solve for x
    x = 31,009,804,433.53/201,910.41
  6. Step 6: Final answer
    x = 153,582.00

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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.