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Finding the Fourth Proportional to 273,393.69, 410,054.50 and 81,264.01

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Solution

The fourth proportional to 273,393.69, 410,054.50 and 81,264.01 is: 121,885.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,393.69 : 410,054.50 = 81,264.01 : x
  2. Step 2: Convert to fraction form
    273,393.69/410,054.50 = 81,264.01/x
  3. Step 3: Cross multiply
    273,393.69x = 410,054.50 × 81,264.01
  4. Step 4: Simplify right side
    273,393.69x = 33,322,672,988.55
  5. Step 5: Solve for x
    x = 33,322,672,988.55/273,393.69
  6. Step 6: Final answer
    x = 121,885.30

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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.