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Finding the Fourth Proportional to 164,087.81, 246,131.71 and 53,279.81

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Solution

The fourth proportional to 164,087.81, 246,131.71 and 53,279.81 is: 79,919.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,087.81 : 246,131.71 = 53,279.81 : x
  2. Step 2: Convert to fraction form
    164,087.81/246,131.71 = 53,279.81/x
  3. Step 3: Cross multiply
    164,087.81x = 246,131.71 × 53,279.81
  4. Step 4: Simplify right side
    164,087.81x = 13,113,850,602.61
  5. Step 5: Solve for x
    x = 13,113,850,602.61/164,087.81
  6. Step 6: Final answer
    x = 79,919.71

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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.