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Finding the Fourth Proportional to 115,461.40, 159,373.02 and 67,734.04

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Solution

The fourth proportional to 115,461.40, 159,373.02 and 67,734.04 is: 93,494.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,461.40 : 159,373.02 = 67,734.04 : x
  2. Step 2: Convert to fraction form
    115,461.40/159,373.02 = 67,734.04/x
  3. Step 3: Cross multiply
    115,461.40x = 159,373.02 × 67,734.04
  4. Step 4: Simplify right side
    115,461.40x = 10,794,978,511.60
  5. Step 5: Solve for x
    x = 10,794,978,511.60/115,461.40
  6. Step 6: Final answer
    x = 93,494.26

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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.