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Finding the Fourth Proportional to 74,494.32, 102,788.64 and 60,322.56

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Solution

The fourth proportional to 74,494.32, 102,788.64 and 60,322.56 is: 83,234.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,494.32 : 102,788.64 = 60,322.56 : x
  2. Step 2: Convert to fraction form
    74,494.32/102,788.64 = 60,322.56/x
  3. Step 3: Cross multiply
    74,494.32x = 102,788.64 × 60,322.56
  4. Step 4: Simplify right side
    74,494.32x = 6,200,473,903.72
  5. Step 5: Solve for x
    x = 6,200,473,903.72/74,494.32
  6. Step 6: Final answer
    x = 83,234.18

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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.