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Finding the Fourth Proportional to 224,616.72, 309,969 and 124,015.44

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Solution

The fourth proportional to 224,616.72, 309,969 and 124,015.44 is: 171,140.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,616.72 : 309,969 = 124,015.44 : x
  2. Step 2: Convert to fraction form
    224,616.72/309,969 = 124,015.44/x
  3. Step 3: Cross multiply
    224,616.72x = 309,969 × 124,015.44
  4. Step 4: Simplify right side
    224,616.72x = 38,440,941,921.36
  5. Step 5: Solve for x
    x = 38,440,941,921.36/224,616.72
  6. Step 6: Final answer
    x = 171,140.16

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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.