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Finding the Fourth Proportional to 241,630.74, 333,476.88 and 138,274.50

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Solution

The fourth proportional to 241,630.74, 333,476.88 and 138,274.50 is: 190,833.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    241,630.74 : 333,476.88 = 138,274.50 : x
  2. Step 2: Convert to fraction form
    241,630.74/333,476.88 = 138,274.50/x
  3. Step 3: Cross multiply
    241,630.74x = 333,476.88 × 138,274.50
  4. Step 4: Simplify right side
    241,630.74x = 46,111,348,843.56
  5. Step 5: Solve for x
    x = 46,111,348,843.56/241,630.74
  6. Step 6: Final answer
    x = 190,833.95

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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.