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Finding the Fourth Proportional to 79,335.91, 118,945.55 and 37,812.07

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Solution

The fourth proportional to 79,335.91, 118,945.55 and 37,812.07 is: 56,690.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,335.91 : 118,945.55 = 37,812.07 : x
  2. Step 2: Convert to fraction form
    79,335.91/118,945.55 = 37,812.07/x
  3. Step 3: Cross multiply
    79,335.91x = 118,945.55 × 37,812.07
  4. Step 4: Simplify right side
    79,335.91x = 4,497,577,273.73
  5. Step 5: Solve for x
    x = 4,497,577,273.73/79,335.91
  6. Step 6: Final answer
    x = 56,690.31

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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.