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Finding the Fourth Proportional to 173,065.40, 259,079.70 and 102,908.60

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Solution

The fourth proportional to 173,065.40, 259,079.70 and 102,908.60 is: 154,054.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,065.40 : 259,079.70 = 102,908.60 : x
  2. Step 2: Convert to fraction form
    173,065.40/259,079.70 = 102,908.60/x
  3. Step 3: Cross multiply
    173,065.40x = 259,079.70 × 102,908.60
  4. Step 4: Simplify right side
    173,065.40x = 26,661,529,215.42
  5. Step 5: Solve for x
    x = 26,661,529,215.42/173,065.40
  6. Step 6: Final answer
    x = 154,054.65

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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.