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Finding the Fourth Proportional to 283,705.93, 425,564.97 and 84,030.40

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Solution

The fourth proportional to 283,705.93, 425,564.97 and 84,030.40 is: 126,047.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,705.93 : 425,564.97 = 84,030.40 : x
  2. Step 2: Convert to fraction form
    283,705.93/425,564.97 = 84,030.40/x
  3. Step 3: Cross multiply
    283,705.93x = 425,564.97 × 84,030.40
  4. Step 4: Simplify right side
    283,705.93x = 35,760,394,655.09
  5. Step 5: Solve for x
    x = 35,760,394,655.09/283,705.93
  6. Step 6: Final answer
    x = 126,047.40

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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.