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Finding the Fourth Proportional to 175,004.70, 262,636.65 and 115,820.70

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Solution

The fourth proportional to 175,004.70, 262,636.65 and 115,820.70 is: 173,816.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,004.70 : 262,636.65 = 115,820.70 : x
  2. Step 2: Convert to fraction form
    175,004.70/262,636.65 = 115,820.70/x
  3. Step 3: Cross multiply
    175,004.70x = 262,636.65 × 115,820.70
  4. Step 4: Simplify right side
    175,004.70x = 30,418,760,648.66
  5. Step 5: Solve for x
    x = 30,418,760,648.66/175,004.70
  6. Step 6: Final answer
    x = 173,816.82

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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.