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Finding the Fourth Proportional to 191,502.69, 287,273.70 and 73,273.47

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Solution

The fourth proportional to 191,502.69, 287,273.70 and 73,273.47 is: 109,917.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,502.69 : 287,273.70 = 73,273.47 : x
  2. Step 2: Convert to fraction form
    191,502.69/287,273.70 = 73,273.47/x
  3. Step 3: Cross multiply
    191,502.69x = 287,273.70 × 73,273.47
  4. Step 4: Simplify right side
    191,502.69x = 21,049,540,838.74
  5. Step 5: Solve for x
    x = 21,049,540,838.74/191,502.69
  6. Step 6: Final answer
    x = 109,917.73

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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.