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Finding the Fourth Proportional to 108,047.80, 149,046.06 and 63,327.16

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Solution

The fourth proportional to 108,047.80, 149,046.06 and 63,327.16 is: 87,356.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,047.80 : 149,046.06 = 63,327.16 : x
  2. Step 2: Convert to fraction form
    108,047.80/149,046.06 = 63,327.16/x
  3. Step 3: Cross multiply
    108,047.80x = 149,046.06 × 63,327.16
  4. Step 4: Simplify right side
    108,047.80x = 9,438,663,688.99
  5. Step 5: Solve for x
    x = 9,438,663,688.99/108,047.80
  6. Step 6: Final answer
    x = 87,356.37

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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.