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Finding the Fourth Proportional to 250,805.44, 346,111.68 and 137,634.40

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Solution

The fourth proportional to 250,805.44, 346,111.68 and 137,634.40 is: 189,935.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,805.44 : 346,111.68 = 137,634.40 : x
  2. Step 2: Convert to fraction form
    250,805.44/346,111.68 = 137,634.40/x
  3. Step 3: Cross multiply
    250,805.44x = 346,111.68 × 137,634.40
  4. Step 4: Simplify right side
    250,805.44x = 47,636,873,409.79
  5. Step 5: Solve for x
    x = 47,636,873,409.79/250,805.44
  6. Step 6: Final answer
    x = 189,935.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.