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Finding the Fourth Proportional to 270,435.32, 373,156.17 and 149,553

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Solution

The fourth proportional to 270,435.32, 373,156.17 and 149,553 is: 206,358.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,435.32 : 373,156.17 = 149,553 : x
  2. Step 2: Convert to fraction form
    270,435.32/373,156.17 = 149,553/x
  3. Step 3: Cross multiply
    270,435.32x = 373,156.17 × 149,553
  4. Step 4: Simplify right side
    270,435.32x = 55,806,624,131.19
  5. Step 5: Solve for x
    x = 55,806,624,131.19/270,435.32
  6. Step 6: Final answer
    x = 206,358.49

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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.