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Finding the Fourth Proportional to 292,273.62, 438,423.20 and 92,608.72

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Solution

The fourth proportional to 292,273.62, 438,423.20 and 92,608.72 is: 138,917.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,273.62 : 438,423.20 = 92,608.72 : x
  2. Step 2: Convert to fraction form
    292,273.62/438,423.20 = 92,608.72/x
  3. Step 3: Cross multiply
    292,273.62x = 438,423.20 × 92,608.72
  4. Step 4: Simplify right side
    292,273.62x = 40,601,811,370.30
  5. Step 5: Solve for x
    x = 40,601,811,370.30/292,273.62
  6. Step 6: Final answer
    x = 138,917.13

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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.