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Finding the Fourth Proportional to 194,569.91, 268,494.91 and 112,891.84

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Solution

The fourth proportional to 194,569.91, 268,494.91 and 112,891.84 is: 155,784.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,569.91 : 268,494.91 = 112,891.84 : x
  2. Step 2: Convert to fraction form
    194,569.91/268,494.91 = 112,891.84/x
  3. Step 3: Cross multiply
    194,569.91x = 268,494.91 × 112,891.84
  4. Step 4: Simplify right side
    194,569.91x = 30,310,884,420.53
  5. Step 5: Solve for x
    x = 30,310,884,420.53/194,569.91
  6. Step 6: Final answer
    x = 155,784.03

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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.