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Finding the Fourth Proportional to 316,336.47, 436,543.83 and 173,096.47

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Solution

The fourth proportional to 316,336.47, 436,543.83 and 173,096.47 is: 238,872.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,336.47 : 436,543.83 = 173,096.47 : x
  2. Step 2: Convert to fraction form
    316,336.47/436,543.83 = 173,096.47/x
  3. Step 3: Cross multiply
    316,336.47x = 436,543.83 × 173,096.47
  4. Step 4: Simplify right side
    316,336.47x = 75,564,195,973.28
  5. Step 5: Solve for x
    x = 75,564,195,973.28/316,336.47
  6. Step 6: Final answer
    x = 238,872.86

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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.