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Finding the Fourth Proportional to 254,681.87, 351,463.07 and 159,243.89

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Solution

The fourth proportional to 254,681.87, 351,463.07 and 159,243.89 is: 219,757.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,681.87 : 351,463.07 = 159,243.89 : x
  2. Step 2: Convert to fraction form
    254,681.87/351,463.07 = 159,243.89/x
  3. Step 3: Cross multiply
    254,681.87x = 351,463.07 × 159,243.89
  4. Step 4: Simplify right side
    254,681.87x = 55,968,346,458.14
  5. Step 5: Solve for x
    x = 55,968,346,458.14/254,681.87
  6. Step 6: Final answer
    x = 219,757.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.