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Finding the Fourth Proportional to 69,807.83, 104,672.07 and 47,648.03

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Solution

The fourth proportional to 69,807.83, 104,672.07 and 47,648.03 is: 71,444.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,807.83 : 104,672.07 = 47,648.03 : x
  2. Step 2: Convert to fraction form
    69,807.83/104,672.07 = 47,648.03/x
  3. Step 3: Cross multiply
    69,807.83x = 104,672.07 × 47,648.03
  4. Step 4: Simplify right side
    69,807.83x = 4,987,417,408.16
  5. Step 5: Solve for x
    x = 4,987,417,408.16/69,807.83
  6. Step 6: Final answer
    x = 71,444.96

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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.