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Finding the Fourth Proportional to 75,589.92, 112,824.27 and 66,732.48

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Solution

The fourth proportional to 75,589.92, 112,824.27 and 66,732.48 is: 99,603.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,589.92 : 112,824.27 = 66,732.48 : x
  2. Step 2: Convert to fraction form
    75,589.92/112,824.27 = 66,732.48/x
  3. Step 3: Cross multiply
    75,589.92x = 112,824.27 × 66,732.48
  4. Step 4: Simplify right side
    75,589.92x = 7,529,043,341.29
  5. Step 5: Solve for x
    x = 7,529,043,341.29/75,589.92
  6. Step 6: Final answer
    x = 99,603.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.