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Finding the Fourth Proportional to 125,410.56, 188,173.44 and 54,354.88

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Solution

The fourth proportional to 125,410.56, 188,173.44 and 54,354.88 is: 81,557.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,410.56 : 188,173.44 = 54,354.88 : x
  2. Step 2: Convert to fraction form
    125,410.56/188,173.44 = 54,354.88/x
  3. Step 3: Cross multiply
    125,410.56x = 188,173.44 × 54,354.88
  4. Step 4: Simplify right side
    125,410.56x = 10,228,144,750.39
  5. Step 5: Solve for x
    x = 10,228,144,750.39/125,410.56
  6. Step 6: Final answer
    x = 81,557.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.