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Finding the Fourth Proportional to 148,725, 223,043.76 and 43,518.96

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Solution

The fourth proportional to 148,725, 223,043.76 and 43,518.96 is: 65,265.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,725 : 223,043.76 = 43,518.96 : x
  2. Step 2: Convert to fraction form
    148,725/223,043.76 = 43,518.96/x
  3. Step 3: Cross multiply
    148,725x = 223,043.76 × 43,518.96
  4. Step 4: Simplify right side
    148,725x = 9,706,632,469.69
  5. Step 5: Solve for x
    x = 9,706,632,469.69/148,725
  6. Step 6: Final answer
    x = 65,265.64

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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.