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Finding the Fourth Proportional to 123,637.50, 170,619.84 and 67,049.10

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Solution

The fourth proportional to 123,637.50, 170,619.84 and 67,049.10 is: 92,527.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,637.50 : 170,619.84 = 67,049.10 : x
  2. Step 2: Convert to fraction form
    123,637.50/170,619.84 = 67,049.10/x
  3. Step 3: Cross multiply
    123,637.50x = 170,619.84 × 67,049.10
  4. Step 4: Simplify right side
    123,637.50x = 11,439,906,714.14
  5. Step 5: Solve for x
    x = 11,439,906,714.14/123,637.50
  6. Step 6: Final answer
    x = 92,527.81

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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.