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Finding the Fourth Proportional to 216,949.32, 325,519.74 and 74,816.28

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Solution

The fourth proportional to 216,949.32, 325,519.74 and 74,816.28 is: 112,257.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,949.32 : 325,519.74 = 74,816.28 : x
  2. Step 2: Convert to fraction form
    216,949.32/325,519.74 = 74,816.28/x
  3. Step 3: Cross multiply
    216,949.32x = 325,519.74 × 74,816.28
  4. Step 4: Simplify right side
    216,949.32x = 24,354,176,013.37
  5. Step 5: Solve for x
    x = 24,354,176,013.37/216,949.32
  6. Step 6: Final answer
    x = 112,257.44

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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.