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Finding the Fourth Proportional to 250,720.84, 375,131.94 and 154,680.76

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Solution

The fourth proportional to 250,720.84, 375,131.94 and 154,680.76 is: 231,435.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,720.84 : 375,131.94 = 154,680.76 : x
  2. Step 2: Convert to fraction form
    250,720.84/375,131.94 = 154,680.76/x
  3. Step 3: Cross multiply
    250,720.84x = 375,131.94 × 154,680.76
  4. Step 4: Simplify right side
    250,720.84x = 58,025,693,579.47
  5. Step 5: Solve for x
    x = 58,025,693,579.47/250,720.84
  6. Step 6: Final answer
    x = 231,435.46

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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.