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Finding the Fourth Proportional to 531,791.37, 797,686.65 and 157,814.37

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Solution

The fourth proportional to 531,791.37, 797,686.65 and 157,814.37 is: 236,721.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,791.37 : 797,686.65 = 157,814.37 : x
  2. Step 2: Convert to fraction form
    531,791.37/797,686.65 = 157,814.37/x
  3. Step 3: Cross multiply
    531,791.37x = 797,686.65 × 157,814.37
  4. Step 4: Simplify right side
    531,791.37x = 125,886,416,127.16
  5. Step 5: Solve for x
    x = 125,886,416,127.16/531,791.37
  6. Step 6: Final answer
    x = 236,721.43

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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.