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Finding the Fourth Proportional to 74,606, 102,956.28 and 41,072

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Solution

The fourth proportional to 74,606, 102,956.28 and 41,072 is: 56,679.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,606 : 102,956.28 = 41,072 : x
  2. Step 2: Convert to fraction form
    74,606/102,956.28 = 41,072/x
  3. Step 3: Cross multiply
    74,606x = 102,956.28 × 41,072
  4. Step 4: Simplify right side
    74,606x = 4,228,620,332.16
  5. Step 5: Solve for x
    x = 4,228,620,332.16/74,606
  6. Step 6: Final answer
    x = 56,679.36

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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.