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Finding the Fourth Proportional to 113,241.76, 169,866.48 and 30,135.84

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Solution

The fourth proportional to 113,241.76, 169,866.48 and 30,135.84 is: 45,204.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,241.76 : 169,866.48 = 30,135.84 : x
  2. Step 2: Convert to fraction form
    113,241.76/169,866.48 = 30,135.84/x
  3. Step 3: Cross multiply
    113,241.76x = 169,866.48 × 30,135.84
  4. Step 4: Simplify right side
    113,241.76x = 5,119,069,062.64
  5. Step 5: Solve for x
    x = 5,119,069,062.64/113,241.76
  6. Step 6: Final answer
    x = 45,204.78

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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.