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Finding the Fourth Proportional to 167,810.64, 251,656 and 55,470.12

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Solution

The fourth proportional to 167,810.64, 251,656 and 55,470.12 is: 83,185.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,810.64 : 251,656 = 55,470.12 : x
  2. Step 2: Convert to fraction form
    167,810.64/251,656 = 55,470.12/x
  3. Step 3: Cross multiply
    167,810.64x = 251,656 × 55,470.12
  4. Step 4: Simplify right side
    167,810.64x = 13,959,388,518.72
  5. Step 5: Solve for x
    x = 13,959,388,518.72/167,810.64
  6. Step 6: Final answer
    x = 83,185.36

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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.