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Finding the Fourth Proportional to 339,705.51, 468,799.56 and 186,750.15

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Solution

The fourth proportional to 339,705.51, 468,799.56 and 186,750.15 is: 257,718.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,705.51 : 468,799.56 = 186,750.15 : x
  2. Step 2: Convert to fraction form
    339,705.51/468,799.56 = 186,750.15/x
  3. Step 3: Cross multiply
    339,705.51x = 468,799.56 × 186,750.15
  4. Step 4: Simplify right side
    339,705.51x = 87,548,385,805.94
  5. Step 5: Solve for x
    x = 87,548,385,805.94/339,705.51
  6. Step 6: Final answer
    x = 257,718.47

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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.