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Finding the Fourth Proportional to 74,274.53, 102,492.42 and 43,644.38

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Solution

The fourth proportional to 74,274.53, 102,492.42 and 43,644.38 is: 60,225.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,274.53 : 102,492.42 = 43,644.38 : x
  2. Step 2: Convert to fraction form
    74,274.53/102,492.42 = 43,644.38/x
  3. Step 3: Cross multiply
    74,274.53x = 102,492.42 × 43,644.38
  4. Step 4: Simplify right side
    74,274.53x = 4,473,218,125.60
  5. Step 5: Solve for x
    x = 4,473,218,125.60/74,274.53
  6. Step 6: Final answer
    x = 60,225.47

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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.