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Finding the Fourth Proportional to 114,040.50, 157,380.75 and 63,739.50

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Solution

The fourth proportional to 114,040.50, 157,380.75 and 63,739.50 is: 87,963.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,040.50 : 157,380.75 = 63,739.50 : x
  2. Step 2: Convert to fraction form
    114,040.50/157,380.75 = 63,739.50/x
  3. Step 3: Cross multiply
    114,040.50x = 157,380.75 × 63,739.50
  4. Step 4: Simplify right side
    114,040.50x = 10,031,370,314.63
  5. Step 5: Solve for x
    x = 10,031,370,314.63/114,040.50
  6. Step 6: Final answer
    x = 87,963.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.