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Finding the Fourth Proportional to 108,355.54, 149,470.46 and 63,028.42

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Solution

The fourth proportional to 108,355.54, 149,470.46 and 63,028.42 is: 86,944.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,355.54 : 149,470.46 = 63,028.42 : x
  2. Step 2: Convert to fraction form
    108,355.54/149,470.46 = 63,028.42/x
  3. Step 3: Cross multiply
    108,355.54x = 149,470.46 × 63,028.42
  4. Step 4: Simplify right side
    108,355.54x = 9,420,886,930.47
  5. Step 5: Solve for x
    x = 9,420,886,930.47/108,355.54
  6. Step 6: Final answer
    x = 86,944.21

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1.5x scale

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.