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Finding the Fourth Proportional to 125,346.56, 188,020.48 and 42,241.28

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Solution

The fourth proportional to 125,346.56, 188,020.48 and 42,241.28 is: 63,362.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,346.56 : 188,020.48 = 42,241.28 : x
  2. Step 2: Convert to fraction form
    125,346.56/188,020.48 = 42,241.28/x
  3. Step 3: Cross multiply
    125,346.56x = 188,020.48 × 42,241.28
  4. Step 4: Simplify right side
    125,346.56x = 7,942,225,741.41
  5. Step 5: Solve for x
    x = 7,942,225,741.41/125,346.56
  6. Step 6: Final answer
    x = 63,362.14

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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.