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Finding the Fourth Proportional to 70,011.54, 104,877.45 and 47,769.75

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Solution

The fourth proportional to 70,011.54, 104,877.45 and 47,769.75 is: 71,559.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,011.54 : 104,877.45 = 47,769.75 : x
  2. Step 2: Convert to fraction form
    70,011.54/104,877.45 = 47,769.75/x
  3. Step 3: Cross multiply
    70,011.54x = 104,877.45 × 47,769.75
  4. Step 4: Simplify right side
    70,011.54x = 5,009,969,567.14
  5. Step 5: Solve for x
    x = 5,009,969,567.14/70,011.54
  6. Step 6: Final answer
    x = 71,559.20

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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.