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Finding the Fourth Proportional to 292,929.40, 404,194.62 and 172,045

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Solution

The fourth proportional to 292,929.40, 404,194.62 and 172,045 is: 237,393.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,929.40 : 404,194.62 = 172,045 : x
  2. Step 2: Convert to fraction form
    292,929.40/404,194.62 = 172,045/x
  3. Step 3: Cross multiply
    292,929.40x = 404,194.62 × 172,045
  4. Step 4: Simplify right side
    292,929.40x = 69,539,663,397.90
  5. Step 5: Solve for x
    x = 69,539,663,397.90/292,929.40
  6. Step 6: Final answer
    x = 237,393.94

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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.