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Finding the Fourth Proportional to 123,752.20, 185,628.30 and 110,921.80

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Solution

The fourth proportional to 123,752.20, 185,628.30 and 110,921.80 is: 166,382.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,752.20 : 185,628.30 = 110,921.80 : x
  2. Step 2: Convert to fraction form
    123,752.20/185,628.30 = 110,921.80/x
  3. Step 3: Cross multiply
    123,752.20x = 185,628.30 × 110,921.80
  4. Step 4: Simplify right side
    123,752.20x = 20,590,225,166.94
  5. Step 5: Solve for x
    x = 20,590,225,166.94/123,752.20
  6. Step 6: Final answer
    x = 166,382.70

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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.