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Finding the Fourth Proportional to 418,242.02, 627,010.34 and 181,406.32

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Solution

The fourth proportional to 418,242.02, 627,010.34 and 181,406.32 is: 271,956.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,242.02 : 627,010.34 = 181,406.32 : x
  2. Step 2: Convert to fraction form
    418,242.02/627,010.34 = 181,406.32/x
  3. Step 3: Cross multiply
    418,242.02x = 627,010.34 × 181,406.32
  4. Step 4: Simplify right side
    418,242.02x = 113,743,637,927.83
  5. Step 5: Solve for x
    x = 113,743,637,927.83/418,242.02
  6. Step 6: Final answer
    x = 271,956.51

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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.