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Finding the Fourth Proportional to 202,291.40, 302,918.70 and 149,414.60

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Solution

The fourth proportional to 202,291.40, 302,918.70 and 149,414.60 is: 223,739.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,291.40 : 302,918.70 = 149,414.60 : x
  2. Step 2: Convert to fraction form
    202,291.40/302,918.70 = 149,414.60/x
  3. Step 3: Cross multiply
    202,291.40x = 302,918.70 × 149,414.60
  4. Step 4: Simplify right side
    202,291.40x = 45,260,476,393.02
  5. Step 5: Solve for x
    x = 45,260,476,393.02/202,291.40
  6. Step 6: Final answer
    x = 223,739.00

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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.