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Finding the Fourth Proportional to 261,573.21, 361,080.72 and 176,805.09

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Solution

The fourth proportional to 261,573.21, 361,080.72 and 176,805.09 is: 244,065.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,573.21 : 361,080.72 = 176,805.09 : x
  2. Step 2: Convert to fraction form
    261,573.21/361,080.72 = 176,805.09/x
  3. Step 3: Cross multiply
    261,573.21x = 361,080.72 × 176,805.09
  4. Step 4: Simplify right side
    261,573.21x = 63,840,909,196.86
  5. Step 5: Solve for x
    x = 63,840,909,196.86/261,573.21
  6. Step 6: Final answer
    x = 244,065.17

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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.