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Finding the Fourth Proportional to 293,440.66, 404,949.80 and 172,587.04

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Solution

The fourth proportional to 293,440.66, 404,949.80 and 172,587.04 is: 238,171.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,440.66 : 404,949.80 = 172,587.04 : x
  2. Step 2: Convert to fraction form
    293,440.66/404,949.80 = 172,587.04/x
  3. Step 3: Cross multiply
    293,440.66x = 404,949.80 × 172,587.04
  4. Step 4: Simplify right side
    293,440.66x = 69,889,087,330.59
  5. Step 5: Solve for x
    x = 69,889,087,330.59/293,440.66
  6. Step 6: Final answer
    x = 238,171.11

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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.