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Finding the Fourth Proportional to 121,963.52, 182,811.80 and 62,802.74

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Solution

The fourth proportional to 121,963.52, 182,811.80 and 62,802.74 is: 94,135.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,963.52 : 182,811.80 = 62,802.74 : x
  2. Step 2: Convert to fraction form
    121,963.52/182,811.80 = 62,802.74/x
  3. Step 3: Cross multiply
    121,963.52x = 182,811.80 × 62,802.74
  4. Step 4: Simplify right side
    121,963.52x = 11,481,080,716.26
  5. Step 5: Solve for x
    x = 11,481,080,716.26/121,963.52
  6. Step 6: Final answer
    x = 94,135.37

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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.