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Finding the Fourth Proportional to 141,798.25, 212,731.31 and 40,597.71

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Solution

The fourth proportional to 141,798.25, 212,731.31 and 40,597.71 is: 60,906.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,798.25 : 212,731.31 = 40,597.71 : x
  2. Step 2: Convert to fraction form
    141,798.25/212,731.31 = 40,597.71/x
  3. Step 3: Cross multiply
    141,798.25x = 212,731.31 × 40,597.71
  4. Step 4: Simplify right side
    141,798.25x = 8,636,403,335.05
  5. Step 5: Solve for x
    x = 8,636,403,335.05/141,798.25
  6. Step 6: Final answer
    x = 60,906.28

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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.