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Finding the Fourth Proportional to 292,930.88, 404,240.98 and 172,083.18

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Solution

The fourth proportional to 292,930.88, 404,240.98 and 172,083.18 is: 237,472.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,930.88 : 404,240.98 = 172,083.18 : x
  2. Step 2: Convert to fraction form
    292,930.88/404,240.98 = 172,083.18/x
  3. Step 3: Cross multiply
    292,930.88x = 404,240.98 × 172,083.18
  4. Step 4: Simplify right side
    292,930.88x = 69,563,074,733.07
  5. Step 5: Solve for x
    x = 69,563,074,733.07/292,930.88
  6. Step 6: Final answer
    x = 237,472.66

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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.