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Finding the Fourth Proportional to 483,390.40, 725,085.60 and 167,879.20

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Solution

The fourth proportional to 483,390.40, 725,085.60 and 167,879.20 is: 251,818.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,390.40 : 725,085.60 = 167,879.20 : x
  2. Step 2: Convert to fraction form
    483,390.40/725,085.60 = 167,879.20/x
  3. Step 3: Cross multiply
    483,390.40x = 725,085.60 × 167,879.20
  4. Step 4: Simplify right side
    483,390.40x = 121,726,790,459.52
  5. Step 5: Solve for x
    x = 121,726,790,459.52/483,390.40
  6. Step 6: Final answer
    x = 251,818.80

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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.