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Finding the Fourth Proportional to 108,258.88, 149,399.40 and 59,860.84

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Solution

The fourth proportional to 108,258.88, 149,399.40 and 59,860.84 is: 82,609.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,258.88 : 149,399.40 = 59,860.84 : x
  2. Step 2: Convert to fraction form
    108,258.88/149,399.40 = 59,860.84/x
  3. Step 3: Cross multiply
    108,258.88x = 149,399.40 × 59,860.84
  4. Step 4: Simplify right side
    108,258.88x = 8,943,173,579.50
  5. Step 5: Solve for x
    x = 8,943,173,579.50/108,258.88
  6. Step 6: Final answer
    x = 82,609.15

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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.