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Finding the Fourth Proportional to 114,858.72, 172,131.48 and 55,576.08

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Solution

The fourth proportional to 114,858.72, 172,131.48 and 55,576.08 is: 83,288.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,858.72 : 172,131.48 = 55,576.08 : x
  2. Step 2: Convert to fraction form
    114,858.72/172,131.48 = 55,576.08/x
  3. Step 3: Cross multiply
    114,858.72x = 172,131.48 × 55,576.08
  4. Step 4: Simplify right side
    114,858.72x = 9,566,392,903.00
  5. Step 5: Solve for x
    x = 9,566,392,903.00/114,858.72
  6. Step 6: Final answer
    x = 83,288.35

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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.