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Finding the Fourth Proportional to 173,128.50, 259,679.79 and 60,809.71

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Solution

The fourth proportional to 173,128.50, 259,679.79 and 60,809.71 is: 91,210.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,128.50 : 259,679.79 = 60,809.71 : x
  2. Step 2: Convert to fraction form
    173,128.50/259,679.79 = 60,809.71/x
  3. Step 3: Cross multiply
    173,128.50x = 259,679.79 × 60,809.71
  4. Step 4: Simplify right side
    173,128.50x = 15,791,052,722.76
  5. Step 5: Solve for x
    x = 15,791,052,722.76/173,128.50
  6. Step 6: Final answer
    x = 91,210.01

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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.