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Finding the Fourth Proportional to 292,717.65, 438,777.38 and 166,090.39

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Solution

The fourth proportional to 292,717.65, 438,777.38 and 166,090.39 is: 248,965.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,717.65 : 438,777.38 = 166,090.39 : x
  2. Step 2: Convert to fraction form
    292,717.65/438,777.38 = 166,090.39/x
  3. Step 3: Cross multiply
    292,717.65x = 438,777.38 × 166,090.39
  4. Step 4: Simplify right side
    292,717.65x = 72,876,707,009.50
  5. Step 5: Solve for x
    x = 72,876,707,009.50/292,717.65
  6. Step 6: Final answer
    x = 248,965.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.