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Finding the Fourth Proportional to 72,984.54, 108,751.31 and 65,025.89

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Solution

The fourth proportional to 72,984.54, 108,751.31 and 65,025.89 is: 96,892.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,984.54 : 108,751.31 = 65,025.89 : x
  2. Step 2: Convert to fraction form
    72,984.54/108,751.31 = 65,025.89/x
  3. Step 3: Cross multiply
    72,984.54x = 108,751.31 × 65,025.89
  4. Step 4: Simplify right side
    72,984.54x = 7,071,650,504.19
  5. Step 5: Solve for x
    x = 7,071,650,504.19/72,984.54
  6. Step 6: Final answer
    x = 96,892.44

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.