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Finding the Fourth Proportional to 108,543.73, 149,788.60 and 60,796.93

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Solution

The fourth proportional to 108,543.73, 149,788.60 and 60,796.93 is: 83,898.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,543.73 : 149,788.60 = 60,796.93 : x
  2. Step 2: Convert to fraction form
    108,543.73/149,788.60 = 60,796.93/x
  3. Step 3: Cross multiply
    108,543.73x = 149,788.60 × 60,796.93
  4. Step 4: Simplify right side
    108,543.73x = 9,106,687,029.00
  5. Step 5: Solve for x
    x = 9,106,687,029.00/108,543.73
  6. Step 6: Final answer
    x = 83,898.78

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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.