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Finding the Fourth Proportional to 239,239.56, 358,867.80 and 126,767.88

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Solution

The fourth proportional to 239,239.56, 358,867.80 and 126,767.88 is: 190,156.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,239.56 : 358,867.80 = 126,767.88 : x
  2. Step 2: Convert to fraction form
    239,239.56/358,867.80 = 126,767.88/x
  3. Step 3: Cross multiply
    239,239.56x = 358,867.80 × 126,767.88
  4. Step 4: Simplify right side
    239,239.56x = 45,492,910,206.26
  5. Step 5: Solve for x
    x = 45,492,910,206.26/239,239.56
  6. Step 6: Final answer
    x = 190,156.30

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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.