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Finding the Fourth Proportional to 242,480.82, 363,721.23 and 84,710.64

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Solution

The fourth proportional to 242,480.82, 363,721.23 and 84,710.64 is: 127,065.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,480.82 : 363,721.23 = 84,710.64 : x
  2. Step 2: Convert to fraction form
    242,480.82/363,721.23 = 84,710.64/x
  3. Step 3: Cross multiply
    242,480.82x = 363,721.23 × 84,710.64
  4. Step 4: Simplify right side
    242,480.82x = 30,811,058,174.89
  5. Step 5: Solve for x
    x = 30,811,058,174.89/242,480.82
  6. Step 6: Final answer
    x = 127,065.96

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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.