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Finding the Fourth Proportional to 242,652.80, 363,995.40 and 82,726.40

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Solution

The fourth proportional to 242,652.80, 363,995.40 and 82,726.40 is: 124,095.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,652.80 : 363,995.40 = 82,726.40 : x
  2. Step 2: Convert to fraction form
    242,652.80/363,995.40 = 82,726.40/x
  3. Step 3: Cross multiply
    242,652.80x = 363,995.40 × 82,726.40
  4. Step 4: Simplify right side
    242,652.80x = 30,112,029,058.56
  5. Step 5: Solve for x
    x = 30,112,029,058.56/242,652.80
  6. Step 6: Final answer
    x = 124,095.12

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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.