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Finding the Fourth Proportional to 490,026.22, 735,090.18 and 135,040.30

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Solution

The fourth proportional to 490,026.22, 735,090.18 and 135,040.30 is: 202,574.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,026.22 : 735,090.18 = 135,040.30 : x
  2. Step 2: Convert to fraction form
    490,026.22/735,090.18 = 135,040.30/x
  3. Step 3: Cross multiply
    490,026.22x = 735,090.18 × 135,040.30
  4. Step 4: Simplify right side
    490,026.22x = 99,266,798,434.25
  5. Step 5: Solve for x
    x = 99,266,798,434.25/490,026.22
  6. Step 6: Final answer
    x = 202,574.46

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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.