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Finding the Fourth Proportional to 99,713.44, 149,445.43 and 49,807.47

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Solution

The fourth proportional to 99,713.44, 149,445.43 and 49,807.47 is: 74,648.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,713.44 : 149,445.43 = 49,807.47 : x
  2. Step 2: Convert to fraction form
    99,713.44/149,445.43 = 49,807.47/x
  3. Step 3: Cross multiply
    99,713.44x = 149,445.43 × 49,807.47
  4. Step 4: Simplify right side
    99,713.44x = 7,443,498,771.36
  5. Step 5: Solve for x
    x = 7,443,498,771.36/99,713.44
  6. Step 6: Final answer
    x = 74,648.90

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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.