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Finding the Fourth Proportional to 98,548.52, 135,968.76 and 55,512.95

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Solution

The fourth proportional to 98,548.52, 135,968.76 and 55,512.95 is: 76,591.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,548.52 : 135,968.76 = 55,512.95 : x
  2. Step 2: Convert to fraction form
    98,548.52/135,968.76 = 55,512.95/x
  3. Step 3: Cross multiply
    98,548.52x = 135,968.76 × 55,512.95
  4. Step 4: Simplify right side
    98,548.52x = 7,548,026,295.60
  5. Step 5: Solve for x
    x = 7,548,026,295.60/98,548.52
  6. Step 6: Final answer
    x = 76,591.98

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1.5x scale

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.