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Finding the Fourth Proportional to 173,782.09, 239,822.93 and 98,330.59

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Solution

The fourth proportional to 173,782.09, 239,822.93 and 98,330.59 is: 135,698.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,782.09 : 239,822.93 = 98,330.59 : x
  2. Step 2: Convert to fraction form
    173,782.09/239,822.93 = 98,330.59/x
  3. Step 3: Cross multiply
    173,782.09x = 239,822.93 × 98,330.59
  4. Step 4: Simplify right side
    173,782.09x = 23,581,930,202.43
  5. Step 5: Solve for x
    x = 23,581,930,202.43/173,782.09
  6. Step 6: Final answer
    x = 135,698.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.