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Finding the Fourth Proportional to 541,255.47, 811,886.59 and 141,892.66

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Solution

The fourth proportional to 541,255.47, 811,886.59 and 141,892.66 is: 212,839.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,255.47 : 811,886.59 = 141,892.66 : x
  2. Step 2: Convert to fraction form
    541,255.47/811,886.59 = 141,892.66/x
  3. Step 3: Cross multiply
    541,255.47x = 811,886.59 × 141,892.66
  4. Step 4: Simplify right side
    541,255.47x = 115,200,749,065.65
  5. Step 5: Solve for x
    x = 115,200,749,065.65/541,255.47
  6. Step 6: Final answer
    x = 212,839.88

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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.