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Finding the Fourth Proportional to 173,288.60, 260,048.10 and 98,408.60

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Solution

The fourth proportional to 173,288.60, 260,048.10 and 98,408.60 is: 147,678.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,288.60 : 260,048.10 = 98,408.60 : x
  2. Step 2: Convert to fraction form
    173,288.60/260,048.10 = 98,408.60/x
  3. Step 3: Cross multiply
    173,288.60x = 260,048.10 × 98,408.60
  4. Step 4: Simplify right side
    173,288.60x = 25,590,969,453.66
  5. Step 5: Solve for x
    x = 25,590,969,453.66/173,288.60
  6. Step 6: Final answer
    x = 147,678.32

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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.