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Finding the Fourth Proportional to 242,359.79, 363,705.75 and 84,588.26

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Solution

The fourth proportional to 242,359.79, 363,705.75 and 84,588.26 is: 126,940.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,359.79 : 363,705.75 = 84,588.26 : x
  2. Step 2: Convert to fraction form
    242,359.79/363,705.75 = 84,588.26/x
  3. Step 3: Cross multiply
    242,359.79x = 363,705.75 × 84,588.26
  4. Step 4: Simplify right side
    242,359.79x = 30,765,234,725.97
  5. Step 5: Solve for x
    x = 30,765,234,725.97/242,359.79
  6. Step 6: Final answer
    x = 126,940.35

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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.