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Finding the Fourth Proportional to 173,109.30, 259,699.05 and 98,265.30

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Solution

The fourth proportional to 173,109.30, 259,699.05 and 98,265.30 is: 147,417.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,109.30 : 259,699.05 = 98,265.30 : x
  2. Step 2: Convert to fraction form
    173,109.30/259,699.05 = 98,265.30/x
  3. Step 3: Cross multiply
    173,109.30x = 259,699.05 × 98,265.30
  4. Step 4: Simplify right side
    173,109.30x = 25,519,405,057.97
  5. Step 5: Solve for x
    x = 25,519,405,057.97/173,109.30
  6. Step 6: Final answer
    x = 147,417.87

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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.