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Finding the Fourth Proportional to 108,059.54, 148,943.67 and 72,236.48

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Solution

The fourth proportional to 108,059.54, 148,943.67 and 72,236.48 is: 99,567.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,059.54 : 148,943.67 = 72,236.48 : x
  2. Step 2: Convert to fraction form
    108,059.54/148,943.67 = 72,236.48/x
  3. Step 3: Cross multiply
    108,059.54x = 148,943.67 × 72,236.48
  4. Step 4: Simplify right side
    108,059.54x = 10,759,165,694.36
  5. Step 5: Solve for x
    x = 10,759,165,694.36/108,059.54
  6. Step 6: Final answer
    x = 99,567.02

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1.5x scale

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.