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Finding the Fourth Proportional to 283,078.70, 424,618.05 and 96,090.20

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Solution

The fourth proportional to 283,078.70, 424,618.05 and 96,090.20 is: 144,135.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,078.70 : 424,618.05 = 96,090.20 : x
  2. Step 2: Convert to fraction form
    283,078.70/424,618.05 = 96,090.20/x
  3. Step 3: Cross multiply
    283,078.70x = 424,618.05 × 96,090.20
  4. Step 4: Simplify right side
    283,078.70x = 40,801,633,348.11
  5. Step 5: Solve for x
    x = 40,801,633,348.11/283,078.70
  6. Step 6: Final answer
    x = 144,135.30

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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.