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Finding the Fourth Proportional to 108,559.66, 149,811.45 and 60,813.46

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Solution

The fourth proportional to 108,559.66, 149,811.45 and 60,813.46 is: 83,922.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,559.66 : 149,811.45 = 60,813.46 : x
  2. Step 2: Convert to fraction form
    108,559.66/149,811.45 = 60,813.46/x
  3. Step 3: Cross multiply
    108,559.66x = 149,811.45 × 60,813.46
  4. Step 4: Simplify right side
    108,559.66x = 9,110,552,622.12
  5. Step 5: Solve for x
    x = 9,110,552,622.12/108,559.66
  6. Step 6: Final answer
    x = 83,922.08

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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.