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Finding the Fourth Proportional to 418,237.71, 627,003.90 and 181,402.02

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Solution

The fourth proportional to 418,237.71, 627,003.90 and 181,402.02 is: 271,950.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,237.71 : 627,003.90 = 181,402.02 : x
  2. Step 2: Convert to fraction form
    418,237.71/627,003.90 = 181,402.02/x
  3. Step 3: Cross multiply
    418,237.71x = 627,003.90 × 181,402.02
  4. Step 4: Simplify right side
    418,237.71x = 113,739,774,007.88
  5. Step 5: Solve for x
    x = 113,739,774,007.88/418,237.71
  6. Step 6: Final answer
    x = 271,950.07

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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.