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Finding the Fourth Proportional to 223,113.78, 334,674.67 and 81,059.94

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Solution

The fourth proportional to 223,113.78, 334,674.67 and 81,059.94 is: 121,591.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,113.78 : 334,674.67 = 81,059.94 : x
  2. Step 2: Convert to fraction form
    223,113.78/334,674.67 = 81,059.94/x
  3. Step 3: Cross multiply
    223,113.78x = 334,674.67 × 81,059.94
  4. Step 4: Simplify right side
    223,113.78x = 27,128,708,669.72
  5. Step 5: Solve for x
    x = 27,128,708,669.72/223,113.78
  6. Step 6: Final answer
    x = 121,591.36

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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.