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Finding the Fourth Proportional to 341,310.82, 511,907.90 and 91,934.50

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Solution

The fourth proportional to 341,310.82, 511,907.90 and 91,934.50 is: 137,886.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,310.82 : 511,907.90 = 91,934.50 : x
  2. Step 2: Convert to fraction form
    341,310.82/511,907.90 = 91,934.50/x
  3. Step 3: Cross multiply
    341,310.82x = 511,907.90 × 91,934.50
  4. Step 4: Simplify right side
    341,310.82x = 47,061,996,832.55
  5. Step 5: Solve for x
    x = 47,061,996,832.55/341,310.82
  6. Step 6: Final answer
    x = 137,886.04

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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.