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Finding the Fourth Proportional to 108,954.56, 163,280.64 and 49,645.28

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Solution

The fourth proportional to 108,954.56, 163,280.64 and 49,645.28 is: 74,399.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,954.56 : 163,280.64 = 49,645.28 : x
  2. Step 2: Convert to fraction form
    108,954.56/163,280.64 = 49,645.28/x
  3. Step 3: Cross multiply
    108,954.56x = 163,280.64 × 49,645.28
  4. Step 4: Simplify right side
    108,954.56x = 8,106,113,091.38
  5. Step 5: Solve for x
    x = 8,106,113,091.38/108,954.56
  6. Step 6: Final answer
    x = 74,399.03

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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.