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Finding the Fourth Proportional to 283,694.18, 425,603.54 and 84,030.20

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Solution

The fourth proportional to 283,694.18, 425,603.54 and 84,030.20 is: 126,063.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,694.18 : 425,603.54 = 84,030.20 : x
  2. Step 2: Convert to fraction form
    283,694.18/425,603.54 = 84,030.20/x
  3. Step 3: Cross multiply
    283,694.18x = 425,603.54 × 84,030.20
  4. Step 4: Simplify right side
    283,694.18x = 35,763,548,038.74
  5. Step 5: Solve for x
    x = 35,763,548,038.74/283,694.18
  6. Step 6: Final answer
    x = 126,063.74

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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.