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Finding the Fourth Proportional to 251,164.84, 376,378.62 and 126,334.12

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Solution

The fourth proportional to 251,164.84, 376,378.62 and 126,334.12 is: 189,315.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,164.84 : 376,378.62 = 126,334.12 : x
  2. Step 2: Convert to fraction form
    251,164.84/376,378.62 = 126,334.12/x
  3. Step 3: Cross multiply
    251,164.84x = 376,378.62 × 126,334.12
  4. Step 4: Simplify right side
    251,164.84x = 47,549,461,744.51
  5. Step 5: Solve for x
    x = 47,549,461,744.51/251,164.84
  6. Step 6: Final answer
    x = 189,315.76

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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.