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Finding the Fourth Proportional to 283,391.68, 425,087.68 and 157,109.44

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Solution

The fourth proportional to 283,391.68, 425,087.68 and 157,109.44 is: 235,664.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,391.68 : 425,087.68 = 157,109.44 : x
  2. Step 2: Convert to fraction form
    283,391.68/425,087.68 = 157,109.44/x
  3. Step 3: Cross multiply
    283,391.68x = 425,087.68 × 157,109.44
  4. Step 4: Simplify right side
    283,391.68x = 66,785,287,355.70
  5. Step 5: Solve for x
    x = 66,785,287,355.70/283,391.68
  6. Step 6: Final answer
    x = 235,664.25

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1.5x scale

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.