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Finding the Fourth Proportional to 293,272, 404,711.04 and 172,426.88

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Solution

The fourth proportional to 293,272, 404,711.04 and 172,426.88 is: 237,946.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,272 : 404,711.04 = 172,426.88 : x
  2. Step 2: Convert to fraction form
    293,272/404,711.04 = 172,426.88/x
  3. Step 3: Cross multiply
    293,272x = 404,711.04 × 172,426.88
  4. Step 4: Simplify right side
    293,272x = 69,783,061,928.76
  5. Step 5: Solve for x
    x = 69,783,061,928.76/293,272
  6. Step 6: Final answer
    x = 237,946.55

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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.