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Finding the Fourth Proportional to 173,392.60, 260,088.90 and 126,736.60

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Solution

The fourth proportional to 173,392.60, 260,088.90 and 126,736.60 is: 190,104.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,392.60 : 260,088.90 = 126,736.60 : x
  2. Step 2: Convert to fraction form
    173,392.60/260,088.90 = 126,736.60/x
  3. Step 3: Cross multiply
    173,392.60x = 260,088.90 × 126,736.60
  4. Step 4: Simplify right side
    173,392.60x = 32,962,782,883.74
  5. Step 5: Solve for x
    x = 32,962,782,883.74/173,392.60
  6. Step 6: Final answer
    x = 190,104.90

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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.