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Finding the Fourth Proportional to 417,196.81, 625,819.43 and 161,030.80

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Solution

The fourth proportional to 417,196.81, 625,819.43 and 161,030.80 is: 241,555.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,196.81 : 625,819.43 = 161,030.80 : x
  2. Step 2: Convert to fraction form
    417,196.81/625,819.43 = 161,030.80/x
  3. Step 3: Cross multiply
    417,196.81x = 625,819.43 × 161,030.80
  4. Step 4: Simplify right side
    417,196.81x = 100,776,203,468.44
  5. Step 5: Solve for x
    x = 100,776,203,468.44/417,196.81
  6. Step 6: Final answer
    x = 241,555.55

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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.