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Finding the Fourth Proportional to 224,494.66, 336,756.54 and 66,709.90

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Solution

The fourth proportional to 224,494.66, 336,756.54 and 66,709.90 is: 100,069.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,494.66 : 336,756.54 = 66,709.90 : x
  2. Step 2: Convert to fraction form
    224,494.66/336,756.54 = 66,709.90/x
  3. Step 3: Cross multiply
    224,494.66x = 336,756.54 × 66,709.90
  4. Step 4: Simplify right side
    224,494.66x = 22,464,995,107.75
  5. Step 5: Solve for x
    x = 22,464,995,107.75/224,494.66
  6. Step 6: Final answer
    x = 100,069.17

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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.