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Finding the Fourth Proportional to 236,910, 355,426.56 and 70,698

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Solution

The fourth proportional to 236,910, 355,426.56 and 70,698 is: 106,065.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,910 : 355,426.56 = 70,698 : x
  2. Step 2: Convert to fraction form
    236,910/355,426.56 = 70,698/x
  3. Step 3: Cross multiply
    236,910x = 355,426.56 × 70,698
  4. Step 4: Simplify right side
    236,910x = 25,127,946,938.88
  5. Step 5: Solve for x
    x = 25,127,946,938.88/236,910
  6. Step 6: Final answer
    x = 106,065.37

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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.