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Finding the Fourth Proportional to 418,699.06, 627,954.27 and 119,173.01

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Solution

The fourth proportional to 418,699.06, 627,954.27 and 119,173.01 is: 178,732.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,699.06 : 627,954.27 = 119,173.01 : x
  2. Step 2: Convert to fraction form
    418,699.06/627,954.27 = 119,173.01/x
  3. Step 3: Cross multiply
    418,699.06x = 627,954.27 × 119,173.01
  4. Step 4: Simplify right side
    418,699.06x = 74,835,197,581.93
  5. Step 5: Solve for x
    x = 74,835,197,581.93/418,699.06
  6. Step 6: Final answer
    x = 178,732.66

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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.