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Finding the Fourth Proportional to 341,278.59, 511,699.18 and 141,736.71

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Solution

The fourth proportional to 341,278.59, 511,699.18 and 141,736.71 is: 212,514.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,278.59 : 511,699.18 = 141,736.71 : x
  2. Step 2: Convert to fraction form
    341,278.59/511,699.18 = 141,736.71/x
  3. Step 3: Cross multiply
    341,278.59x = 511,699.18 × 141,736.71
  4. Step 4: Simplify right side
    341,278.59x = 72,526,558,282.90
  5. Step 5: Solve for x
    x = 72,526,558,282.90/341,278.59
  6. Step 6: Final answer
    x = 212,514.23

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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.