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Finding the Fourth Proportional to 268,349.94, 402,538.62 and 68,672.04

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Solution

The fourth proportional to 268,349.94, 402,538.62 and 68,672.04 is: 103,011.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,349.94 : 402,538.62 = 68,672.04 : x
  2. Step 2: Convert to fraction form
    268,349.94/402,538.62 = 68,672.04/x
  3. Step 3: Cross multiply
    268,349.94x = 402,538.62 × 68,672.04
  4. Step 4: Simplify right side
    268,349.94x = 27,643,148,214.18
  5. Step 5: Solve for x
    x = 27,643,148,214.18/268,349.94
  6. Step 6: Final answer
    x = 103,011.57

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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.