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Finding the Fourth Proportional to 173,265.90, 259,704.45 and 98,421.90

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Solution

The fourth proportional to 173,265.90, 259,704.45 and 98,421.90 is: 147,522.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,265.90 : 259,704.45 = 98,421.90 : x
  2. Step 2: Convert to fraction form
    173,265.90/259,704.45 = 98,421.90/x
  3. Step 3: Cross multiply
    173,265.90x = 259,704.45 × 98,421.90
  4. Step 4: Simplify right side
    173,265.90x = 25,560,605,407.46
  5. Step 5: Solve for x
    x = 25,560,605,407.46/173,265.90
  6. Step 6: Final answer
    x = 147,522.42

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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.