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Finding the Fourth Proportional to 283,336.40, 425,004.60 and 158,661.20

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Solution

The fourth proportional to 283,336.40, 425,004.60 and 158,661.20 is: 237,991.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,336.40 : 425,004.60 = 158,661.20 : x
  2. Step 2: Convert to fraction form
    283,336.40/425,004.60 = 158,661.20/x
  3. Step 3: Cross multiply
    283,336.40x = 425,004.60 × 158,661.20
  4. Step 4: Simplify right side
    283,336.40x = 67,431,739,841.52
  5. Step 5: Solve for x
    x = 67,431,739,841.52/283,336.40
  6. Step 6: Final answer
    x = 237,991.80

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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.