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Finding the Fourth Proportional to 84,499.68, 116,621.76 and 48,682.80

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Solution

The fourth proportional to 84,499.68, 116,621.76 and 48,682.80 is: 67,189.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,499.68 : 116,621.76 = 48,682.80 : x
  2. Step 2: Convert to fraction form
    84,499.68/116,621.76 = 48,682.80/x
  3. Step 3: Cross multiply
    84,499.68x = 116,621.76 × 48,682.80
  4. Step 4: Simplify right side
    84,499.68x = 5,677,473,817.73
  5. Step 5: Solve for x
    x = 5,677,473,817.73/84,499.68
  6. Step 6: Final answer
    x = 67,189.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.