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Finding the Fourth Proportional to 292,891.72, 404,276.50 and 170,412.91

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Solution

The fourth proportional to 292,891.72, 404,276.50 and 170,412.91 is: 235,219.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,891.72 : 404,276.50 = 170,412.91 : x
  2. Step 2: Convert to fraction form
    292,891.72/404,276.50 = 170,412.91/x
  3. Step 3: Cross multiply
    292,891.72x = 404,276.50 × 170,412.91
  4. Step 4: Simplify right side
    292,891.72x = 68,893,934,809.62
  5. Step 5: Solve for x
    x = 68,893,934,809.62/292,891.72
  6. Step 6: Final answer
    x = 235,219.81

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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.