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Finding the Fourth Proportional to 74,063.94, 102,255.94 and 66,092.46

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Solution

The fourth proportional to 74,063.94, 102,255.94 and 66,092.46 is: 91,250.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,063.94 : 102,255.94 = 66,092.46 : x
  2. Step 2: Convert to fraction form
    74,063.94/102,255.94 = 66,092.46/x
  3. Step 3: Cross multiply
    74,063.94x = 102,255.94 × 66,092.46
  4. Step 4: Simplify right side
    74,063.94x = 6,758,346,624.21
  5. Step 5: Solve for x
    x = 6,758,346,624.21/74,063.94
  6. Step 6: Final answer
    x = 91,250.16

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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.