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Finding the Fourth Proportional to 163,656.84, 225,826.60 and 91,042.57

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Solution

The fourth proportional to 163,656.84, 225,826.60 and 91,042.57 is: 125,627.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,656.84 : 225,826.60 = 91,042.57 : x
  2. Step 2: Convert to fraction form
    163,656.84/225,826.60 = 91,042.57/x
  3. Step 3: Cross multiply
    163,656.84x = 225,826.60 × 91,042.57
  4. Step 4: Simplify right side
    163,656.84x = 20,559,833,583.15
  5. Step 5: Solve for x
    x = 20,559,833,583.15/163,656.84
  6. Step 6: Final answer
    x = 125,627.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.