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Finding the Fourth Proportional to 108,745.40, 163,118.10 and 97,340.60

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Solution

The fourth proportional to 108,745.40, 163,118.10 and 97,340.60 is: 146,010.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,745.40 : 163,118.10 = 97,340.60 : x
  2. Step 2: Convert to fraction form
    108,745.40/163,118.10 = 97,340.60/x
  3. Step 3: Cross multiply
    108,745.40x = 163,118.10 × 97,340.60
  4. Step 4: Simplify right side
    108,745.40x = 15,878,013,724.86
  5. Step 5: Solve for x
    x = 15,878,013,724.86/108,745.40
  6. Step 6: Final answer
    x = 146,010.90

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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.