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Finding the Fourth Proportional to 334,111.84, 501,162.59 and 81,392.04

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Solution

The fourth proportional to 334,111.84, 501,162.59 and 81,392.04 is: 122,086.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,111.84 : 501,162.59 = 81,392.04 : x
  2. Step 2: Convert to fraction form
    334,111.84/501,162.59 = 81,392.04/x
  3. Step 3: Cross multiply
    334,111.84x = 501,162.59 × 81,392.04
  4. Step 4: Simplify right side
    334,111.84x = 40,790,645,775.26
  5. Step 5: Solve for x
    x = 40,790,645,775.26/334,111.84
  6. Step 6: Final answer
    x = 122,086.80

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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.