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Finding the Fourth Proportional to 141,871.13, 212,855.30 and 48,442.49

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Solution

The fourth proportional to 141,871.13, 212,855.30 and 48,442.49 is: 72,680.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,871.13 : 212,855.30 = 48,442.49 : x
  2. Step 2: Convert to fraction form
    141,871.13/212,855.30 = 48,442.49/x
  3. Step 3: Cross multiply
    141,871.13x = 212,855.30 × 48,442.49
  4. Step 4: Simplify right side
    141,871.13x = 10,311,240,741.70
  5. Step 5: Solve for x
    x = 10,311,240,741.70/141,871.13
  6. Step 6: Final answer
    x = 72,680.33

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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.