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Finding the Fourth Proportional to 505,043.68, 757,637.52 and 167,973.28

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Solution

The fourth proportional to 505,043.68, 757,637.52 and 167,973.28 is: 251,983.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,043.68 : 757,637.52 = 167,973.28 : x
  2. Step 2: Convert to fraction form
    505,043.68/757,637.52 = 167,973.28/x
  3. Step 3: Cross multiply
    505,043.68x = 757,637.52 × 167,973.28
  4. Step 4: Simplify right side
    505,043.68x = 127,262,859,285.47
  5. Step 5: Solve for x
    x = 127,262,859,285.47/505,043.68
  6. Step 6: Final answer
    x = 251,983.87

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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.