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Finding the Fourth Proportional to 483,608.40, 725,412.60 and 168,097.20

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Solution

The fourth proportional to 483,608.40, 725,412.60 and 168,097.20 is: 252,145.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,608.40 : 725,412.60 = 168,097.20 : x
  2. Step 2: Convert to fraction form
    483,608.40/725,412.60 = 168,097.20/x
  3. Step 3: Cross multiply
    483,608.40x = 725,412.60 × 168,097.20
  4. Step 4: Simplify right side
    483,608.40x = 121,939,826,904.72
  5. Step 5: Solve for x
    x = 121,939,826,904.72/483,608.40
  6. Step 6: Final answer
    x = 252,145.80

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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.