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Finding the Fourth Proportional to 70,526.88, 105,654.96 and 43,793.64

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Solution

The fourth proportional to 70,526.88, 105,654.96 and 43,793.64 is: 65,606.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,526.88 : 105,654.96 = 43,793.64 : x
  2. Step 2: Convert to fraction form
    70,526.88/105,654.96 = 43,793.64/x
  3. Step 3: Cross multiply
    70,526.88x = 105,654.96 × 43,793.64
  4. Step 4: Simplify right side
    70,526.88x = 4,627,015,282.45
  5. Step 5: Solve for x
    x = 4,627,015,282.45/70,526.88
  6. Step 6: Final answer
    x = 65,606.41

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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.