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Finding the Fourth Proportional to 369,322.54, 553,786.71 and 191,650.66

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Solution

The fourth proportional to 369,322.54, 553,786.71 and 191,650.66 is: 287,373.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,322.54 : 553,786.71 = 191,650.66 : x
  2. Step 2: Convert to fraction form
    369,322.54/553,786.71 = 191,650.66/x
  3. Step 3: Cross multiply
    369,322.54x = 553,786.71 × 191,650.66
  4. Step 4: Simplify right side
    369,322.54x = 106,133,588,470.73
  5. Step 5: Solve for x
    x = 106,133,588,470.73/369,322.54
  6. Step 6: Final answer
    x = 287,373.71

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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.