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Finding the Fourth Proportional to 417,642.87, 626,561.51 and 181,009.47

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Solution

The fourth proportional to 417,642.87, 626,561.51 and 181,009.47 is: 271,556.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,642.87 : 626,561.51 = 181,009.47 : x
  2. Step 2: Convert to fraction form
    417,642.87/626,561.51 = 181,009.47/x
  3. Step 3: Cross multiply
    417,642.87x = 626,561.51 × 181,009.47
  4. Step 4: Simplify right side
    417,642.87x = 113,413,565,942.45
  5. Step 5: Solve for x
    x = 113,413,565,942.45/417,642.87
  6. Step 6: Final answer
    x = 271,556.33

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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.