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Finding the Fourth Proportional to 173,511.40, 259,748.70 and 103,354.60

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Solution

The fourth proportional to 173,511.40, 259,748.70 and 103,354.60 is: 154,723.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,511.40 : 259,748.70 = 103,354.60 : x
  2. Step 2: Convert to fraction form
    173,511.40/259,748.70 = 103,354.60/x
  3. Step 3: Cross multiply
    173,511.40x = 259,748.70 × 103,354.60
  4. Step 4: Simplify right side
    173,511.40x = 26,846,222,989.02
  5. Step 5: Solve for x
    x = 26,846,222,989.02/173,511.40
  6. Step 6: Final answer
    x = 154,723.11

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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.