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Finding the Fourth Proportional to 541,025.78, 811,515.60 and 141,657.71

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Solution

The fourth proportional to 541,025.78, 811,515.60 and 141,657.71 is: 212,480.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,025.78 : 811,515.60 = 141,657.71 : x
  2. Step 2: Convert to fraction form
    541,025.78/811,515.60 = 141,657.71/x
  3. Step 3: Cross multiply
    541,025.78x = 811,515.60 × 141,657.71
  4. Step 4: Simplify right side
    541,025.78x = 114,957,437,467.70
  5. Step 5: Solve for x
    x = 114,957,437,467.70/541,025.78
  6. Step 6: Final answer
    x = 212,480.52

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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.