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Finding the Fourth Proportional to 103,230.24, 154,940.40 and 63,864.24

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Solution

The fourth proportional to 103,230.24, 154,940.40 and 63,864.24 is: 95,855.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,230.24 : 154,940.40 = 63,864.24 : x
  2. Step 2: Convert to fraction form
    103,230.24/154,940.40 = 63,864.24/x
  3. Step 3: Cross multiply
    103,230.24x = 154,940.40 × 63,864.24
  4. Step 4: Simplify right side
    103,230.24x = 9,895,150,891.30
  5. Step 5: Solve for x
    x = 9,895,150,891.30/103,230.24
  6. Step 6: Final answer
    x = 95,855.16

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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.