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Finding the Fourth Proportional to 79,322.16, 109,449.42 and 45,341.41

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Solution

The fourth proportional to 79,322.16, 109,449.42 and 45,341.41 is: 62,562.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,322.16 : 109,449.42 = 45,341.41 : x
  2. Step 2: Convert to fraction form
    79,322.16/109,449.42 = 45,341.41/x
  3. Step 3: Cross multiply
    79,322.16x = 109,449.42 × 45,341.41
  4. Step 4: Simplify right side
    79,322.16x = 4,962,591,026.48
  5. Step 5: Solve for x
    x = 4,962,591,026.48/79,322.16
  6. Step 6: Final answer
    x = 62,562.48

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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.