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Finding the Fourth Proportional to 292,134.86, 438,383.73 and 187,029.26

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Solution

The fourth proportional to 292,134.86, 438,383.73 and 187,029.26 is: 280,660.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,134.86 : 438,383.73 = 187,029.26 : x
  2. Step 2: Convert to fraction form
    292,134.86/438,383.73 = 187,029.26/x
  3. Step 3: Cross multiply
    292,134.86x = 438,383.73 × 187,029.26
  4. Step 4: Simplify right side
    292,134.86x = 81,990,584,617.94
  5. Step 5: Solve for x
    x = 81,990,584,617.94/292,134.86
  6. Step 6: Final answer
    x = 280,660.05

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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.