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Finding the Fourth Proportional to 292,906.52, 439,359.80 and 105,874.28

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Solution

The fourth proportional to 292,906.52, 439,359.80 and 105,874.28 is: 158,811.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,906.52 : 439,359.80 = 105,874.28 : x
  2. Step 2: Convert to fraction form
    292,906.52/439,359.80 = 105,874.28/x
  3. Step 3: Cross multiply
    292,906.52x = 439,359.80 × 105,874.28
  4. Step 4: Simplify right side
    292,906.52x = 46,516,902,485.94
  5. Step 5: Solve for x
    x = 46,516,902,485.94/292,906.52
  6. Step 6: Final answer
    x = 158,811.43

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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.