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Finding the Fourth Proportional to 98,604.40, 147,906.60 and 92,772.40

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Solution

The fourth proportional to 98,604.40, 147,906.60 and 92,772.40 is: 139,158.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,604.40 : 147,906.60 = 92,772.40 : x
  2. Step 2: Convert to fraction form
    98,604.40/147,906.60 = 92,772.40/x
  3. Step 3: Cross multiply
    98,604.40x = 147,906.60 × 92,772.40
  4. Step 4: Simplify right side
    98,604.40x = 13,721,650,257.84
  5. Step 5: Solve for x
    x = 13,721,650,257.84/98,604.40
  6. Step 6: Final answer
    x = 139,158.60

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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.