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Finding the Fourth Proportional to 483,659.01, 725,487.63 and 128,673.03

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Solution

The fourth proportional to 483,659.01, 725,487.63 and 128,673.03 is: 193,009.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,659.01 : 725,487.63 = 128,673.03 : x
  2. Step 2: Convert to fraction form
    483,659.01/725,487.63 = 128,673.03/x
  3. Step 3: Cross multiply
    483,659.01x = 725,487.63 × 128,673.03
  4. Step 4: Simplify right side
    483,659.01x = 93,350,691,579.62
  5. Step 5: Solve for x
    x = 93,350,691,579.62/483,659.01
  6. Step 6: Final answer
    x = 193,009.31

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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.