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Finding the Fourth Proportional to 158,894.63, 219,294.03 and 91,826.63

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Solution

The fourth proportional to 158,894.63, 219,294.03 and 91,826.63 is: 126,731.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,894.63 : 219,294.03 = 91,826.63 : x
  2. Step 2: Convert to fraction form
    158,894.63/219,294.03 = 91,826.63/x
  3. Step 3: Cross multiply
    158,894.63x = 219,294.03 × 91,826.63
  4. Step 4: Simplify right side
    158,894.63x = 20,137,030,657.55
  5. Step 5: Solve for x
    x = 20,137,030,657.55/158,894.63
  6. Step 6: Final answer
    x = 126,731.98

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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.