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Finding the Fourth Proportional to 162,551.80, 243,633.30 and 83,625.40

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Solution

The fourth proportional to 162,551.80, 243,633.30 and 83,625.40 is: 125,338.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,551.80 : 243,633.30 = 83,625.40 : x
  2. Step 2: Convert to fraction form
    162,551.80/243,633.30 = 83,625.40/x
  3. Step 3: Cross multiply
    162,551.80x = 243,633.30 × 83,625.40
  4. Step 4: Simplify right side
    162,551.80x = 20,373,932,165.82
  5. Step 5: Solve for x
    x = 20,373,932,165.82/162,551.80
  6. Step 6: Final answer
    x = 125,338.09

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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.