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Finding the Fourth Proportional to 108,245.58, 149,378.49 and 60,498.51

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Solution

The fourth proportional to 108,245.58, 149,378.49 and 60,498.51 is: 83,487.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,245.58 : 149,378.49 = 60,498.51 : x
  2. Step 2: Convert to fraction form
    108,245.58/149,378.49 = 60,498.51/x
  3. Step 3: Cross multiply
    108,245.58x = 149,378.49 × 60,498.51
  4. Step 4: Simplify right side
    108,245.58x = 9,037,176,071.05
  5. Step 5: Solve for x
    x = 9,037,176,071.05/108,245.58
  6. Step 6: Final answer
    x = 83,487.71

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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.