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Finding the Fourth Proportional to 318,883.33, 440,058.94 and 175,643.37

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Solution

The fourth proportional to 318,883.33, 440,058.94 and 175,643.37 is: 242,387.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,883.33 : 440,058.94 = 175,643.37 : x
  2. Step 2: Convert to fraction form
    318,883.33/440,058.94 = 175,643.37/x
  3. Step 3: Cross multiply
    318,883.33x = 440,058.94 × 175,643.37
  4. Step 4: Simplify right side
    318,883.33x = 77,293,433,019.93
  5. Step 5: Solve for x
    x = 77,293,433,019.93/318,883.33
  6. Step 6: Final answer
    x = 242,387.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.