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Finding the Fourth Proportional to 224,317.28, 309,549.30 and 123,715.28

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Solution

The fourth proportional to 224,317.28, 309,549.30 and 123,715.28 is: 170,722.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,317.28 : 309,549.30 = 123,715.28 : x
  2. Step 2: Convert to fraction form
    224,317.28/309,549.30 = 123,715.28/x
  3. Step 3: Cross multiply
    224,317.28x = 309,549.30 × 123,715.28
  4. Step 4: Simplify right side
    224,317.28x = 38,295,978,633.24
  5. Step 5: Solve for x
    x = 38,295,978,633.24/224,317.28
  6. Step 6: Final answer
    x = 170,722.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.