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Finding the Fourth Proportional to 117,786.12, 162,549.18 and 67,494.84

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Solution

The fourth proportional to 117,786.12, 162,549.18 and 67,494.84 is: 93,145.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,786.12 : 162,549.18 = 67,494.84 : x
  2. Step 2: Convert to fraction form
    117,786.12/162,549.18 = 67,494.84/x
  3. Step 3: Cross multiply
    117,786.12x = 162,549.18 × 67,494.84
  4. Step 4: Simplify right side
    117,786.12x = 10,971,230,896.23
  5. Step 5: Solve for x
    x = 10,971,230,896.23/117,786.12
  6. Step 6: Final answer
    x = 93,145.36

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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.