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Finding the Fourth Proportional to 384,427.90, 576,425.86 and 159,637.11

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Solution

The fourth proportional to 384,427.90, 576,425.86 and 159,637.11 is: 239,365.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,427.90 : 576,425.86 = 159,637.11 : x
  2. Step 2: Convert to fraction form
    384,427.90/576,425.86 = 159,637.11/x
  3. Step 3: Cross multiply
    384,427.90x = 576,425.86 × 159,637.11
  4. Step 4: Simplify right side
    384,427.90x = 92,018,958,419.66
  5. Step 5: Solve for x
    x = 92,018,958,419.66/384,427.90
  6. Step 6: Final answer
    x = 239,365.97

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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.