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Finding the Fourth Proportional to 157,492.80, 236,239.20 and 82,843.20

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Solution

The fourth proportional to 157,492.80, 236,239.20 and 82,843.20 is: 124,264.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,492.80 : 236,239.20 = 82,843.20 : x
  2. Step 2: Convert to fraction form
    157,492.80/236,239.20 = 82,843.20/x
  3. Step 3: Cross multiply
    157,492.80x = 236,239.20 × 82,843.20
  4. Step 4: Simplify right side
    157,492.80x = 19,570,811,293.44
  5. Step 5: Solve for x
    x = 19,570,811,293.44/157,492.80
  6. Step 6: Final answer
    x = 124,264.80

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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.