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Finding the Fourth Proportional to 283,879.40, 425,746.48 and 84,153.12

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Solution

The fourth proportional to 283,879.40, 425,746.48 and 84,153.12 is: 126,208.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,879.40 : 425,746.48 = 84,153.12 : x
  2. Step 2: Convert to fraction form
    283,879.40/425,746.48 = 84,153.12/x
  3. Step 3: Cross multiply
    283,879.40x = 425,746.48 × 84,153.12
  4. Step 4: Simplify right side
    283,879.40x = 35,827,894,621.02
  5. Step 5: Solve for x
    x = 35,827,894,621.02/283,879.40
  6. Step 6: Final answer
    x = 126,208.15

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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.