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Finding the Fourth Proportional to 314,687.43, 472,227.98 and 127,698.93

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Solution

The fourth proportional to 314,687.43, 472,227.98 and 127,698.93 is: 191,628.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,687.43 : 472,227.98 = 127,698.93 : x
  2. Step 2: Convert to fraction form
    314,687.43/472,227.98 = 127,698.93/x
  3. Step 3: Cross multiply
    314,687.43x = 472,227.98 × 127,698.93
  4. Step 4: Simplify right side
    314,687.43x = 60,303,007,123.57
  5. Step 5: Solve for x
    x = 60,303,007,123.57/314,687.43
  6. Step 6: Final answer
    x = 191,628.27

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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.