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Finding the Fourth Proportional to 74,457.03, 102,667.31 and 69,733.11

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Solution

The fourth proportional to 74,457.03, 102,667.31 and 69,733.11 is: 96,153.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,457.03 : 102,667.31 = 69,733.11 : x
  2. Step 2: Convert to fraction form
    74,457.03/102,667.31 = 69,733.11/x
  3. Step 3: Cross multiply
    74,457.03x = 102,667.31 × 69,733.11
  4. Step 4: Simplify right side
    74,457.03x = 7,159,310,472.97
  5. Step 5: Solve for x
    x = 7,159,310,472.97/74,457.03
  6. Step 6: Final answer
    x = 96,153.59

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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.