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Finding the Fourth Proportional to 245,583.51, 368,375.28 and 68,090.53

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Solution

The fourth proportional to 245,583.51, 368,375.28 and 68,090.53 is: 102,135.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,583.51 : 368,375.28 = 68,090.53 : x
  2. Step 2: Convert to fraction form
    245,583.51/368,375.28 = 68,090.53/x
  3. Step 3: Cross multiply
    245,583.51x = 368,375.28 × 68,090.53
  4. Step 4: Simplify right side
    245,583.51x = 25,082,867,133.16
  5. Step 5: Solve for x
    x = 25,082,867,133.16/245,583.51
  6. Step 6: Final answer
    x = 102,135.80

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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.