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Finding the Fourth Proportional to 316,632.52, 436,953.10 and 173,392.60

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Solution

The fourth proportional to 316,632.52, 436,953.10 and 173,392.60 is: 239,281.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,632.52 : 436,953.10 = 173,392.60 : x
  2. Step 2: Convert to fraction form
    316,632.52/436,953.10 = 173,392.60/x
  3. Step 3: Cross multiply
    316,632.52x = 436,953.10 × 173,392.60
  4. Step 4: Simplify right side
    316,632.52x = 75,764,434,087.06
  5. Step 5: Solve for x
    x = 75,764,434,087.06/316,632.52
  6. Step 6: Final answer
    x = 239,281.91

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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.