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Finding the Fourth Proportional to 125,350.56, 188,026.48 and 42,245.28

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Solution

The fourth proportional to 125,350.56, 188,026.48 and 42,245.28 is: 63,368.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,350.56 : 188,026.48 = 42,245.28 : x
  2. Step 2: Convert to fraction form
    125,350.56/188,026.48 = 42,245.28/x
  3. Step 3: Cross multiply
    125,350.56x = 188,026.48 × 42,245.28
  4. Step 4: Simplify right side
    125,350.56x = 7,943,231,295.01
  5. Step 5: Solve for x
    x = 7,943,231,295.01/125,350.56
  6. Step 6: Final answer
    x = 63,368.14

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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.