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Finding the Fourth Proportional to 161,218.94, 241,824.30 and 42,891.30

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Solution

The fourth proportional to 161,218.94, 241,824.30 and 42,891.30 is: 64,335.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,218.94 : 241,824.30 = 42,891.30 : x
  2. Step 2: Convert to fraction form
    161,218.94/241,824.30 = 42,891.30/x
  3. Step 3: Cross multiply
    161,218.94x = 241,824.30 × 42,891.30
  4. Step 4: Simplify right side
    161,218.94x = 10,372,158,598.59
  5. Step 5: Solve for x
    x = 10,372,158,598.59/161,218.94
  6. Step 6: Final answer
    x = 64,335.86

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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.