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Finding the Fourth Proportional to 115,768, 173,674.56 and 49,207.36

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Solution

The fourth proportional to 115,768, 173,674.56 and 49,207.36 is: 73,820.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,768 : 173,674.56 = 49,207.36 : x
  2. Step 2: Convert to fraction form
    115,768/173,674.56 = 49,207.36/x
  3. Step 3: Cross multiply
    115,768x = 173,674.56 × 49,207.36
  4. Step 4: Simplify right side
    115,768x = 8,546,066,596.76
  5. Step 5: Solve for x
    x = 8,546,066,596.76/115,768
  6. Step 6: Final answer
    x = 73,820.63

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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.