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Finding the Fourth Proportional to 259,714, 357,605.93 and 221,387.64

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Solution

The fourth proportional to 259,714, 357,605.93 and 221,387.64 is: 304,833.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,714 : 357,605.93 = 221,387.64 : x
  2. Step 2: Convert to fraction form
    259,714/357,605.93 = 221,387.64/x
  3. Step 3: Cross multiply
    259,714x = 357,605.93 × 221,387.64
  4. Step 4: Simplify right side
    259,714x = 79,169,529,997.74
  5. Step 5: Solve for x
    x = 79,169,529,997.74/259,714
  6. Step 6: Final answer
    x = 304,833.51

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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.