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Finding the Fourth Proportional to 108,840.10, 163,260.15 and 73,410.70

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Solution

The fourth proportional to 108,840.10, 163,260.15 and 73,410.70 is: 110,116.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,840.10 : 163,260.15 = 73,410.70 : x
  2. Step 2: Convert to fraction form
    108,840.10/163,260.15 = 73,410.70/x
  3. Step 3: Cross multiply
    108,840.10x = 163,260.15 × 73,410.70
  4. Step 4: Simplify right side
    108,840.10x = 11,985,041,893.61
  5. Step 5: Solve for x
    x = 11,985,041,893.61/108,840.10
  6. Step 6: Final answer
    x = 110,116.05

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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.