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Finding the Fourth Proportional to 335,090.70, 502,725.15 and 145,469.70

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Solution

The fourth proportional to 335,090.70, 502,725.15 and 145,469.70 is: 218,243.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,090.70 : 502,725.15 = 145,469.70 : x
  2. Step 2: Convert to fraction form
    335,090.70/502,725.15 = 145,469.70/x
  3. Step 3: Cross multiply
    335,090.70x = 502,725.15 × 145,469.70
  4. Step 4: Simplify right side
    335,090.70x = 73,131,276,752.96
  5. Step 5: Solve for x
    x = 73,131,276,752.96/335,090.70
  6. Step 6: Final answer
    x = 218,243.23

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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.