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Finding the Fourth Proportional to 316,777.78, 475,322.79 and 148,309.51

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Solution

The fourth proportional to 316,777.78, 475,322.79 and 148,309.51 is: 222,537.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,777.78 : 475,322.79 = 148,309.51 : x
  2. Step 2: Convert to fraction form
    316,777.78/475,322.79 = 148,309.51/x
  3. Step 3: Cross multiply
    316,777.78x = 475,322.79 × 148,309.51
  4. Step 4: Simplify right side
    316,777.78x = 70,494,890,076.73
  5. Step 5: Solve for x
    x = 70,494,890,076.73/316,777.78
  6. Step 6: Final answer
    x = 222,537.36

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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.