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Finding the Fourth Proportional to 101,466.09, 140,013.67 and 68,693.84

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Solution

The fourth proportional to 101,466.09, 140,013.67 and 68,693.84 is: 94,791.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,466.09 : 140,013.67 = 68,693.84 : x
  2. Step 2: Convert to fraction form
    101,466.09/140,013.67 = 68,693.84/x
  3. Step 3: Cross multiply
    101,466.09x = 140,013.67 × 68,693.84
  4. Step 4: Simplify right side
    101,466.09x = 9,618,075,687.12
  5. Step 5: Solve for x
    x = 9,618,075,687.12/101,466.09
  6. Step 6: Final answer
    x = 94,791.03

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1.5x scale

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.