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Finding the Fourth Proportional to 123,568.80, 185,353.20 and 73,705.20

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Solution

The fourth proportional to 123,568.80, 185,353.20 and 73,705.20 is: 110,557.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,568.80 : 185,353.20 = 73,705.20 : x
  2. Step 2: Convert to fraction form
    123,568.80/185,353.20 = 73,705.20/x
  3. Step 3: Cross multiply
    123,568.80x = 185,353.20 × 73,705.20
  4. Step 4: Simplify right side
    123,568.80x = 13,661,494,676.64
  5. Step 5: Solve for x
    x = 13,661,494,676.64/123,568.80
  6. Step 6: Final answer
    x = 110,557.80

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1.5x scale

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.