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Finding the Fourth Proportional to 78,710.85, 118,094.47 and 33,713.33

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Solution

The fourth proportional to 78,710.85, 118,094.47 and 33,713.33 is: 50,582.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,710.85 : 118,094.47 = 33,713.33 : x
  2. Step 2: Convert to fraction form
    78,710.85/118,094.47 = 33,713.33/x
  3. Step 3: Cross multiply
    78,710.85x = 118,094.47 × 33,713.33
  4. Step 4: Simplify right side
    78,710.85x = 3,981,357,377.01
  5. Step 5: Solve for x
    x = 3,981,357,377.01/78,710.85
  6. Step 6: Final answer
    x = 50,582.06

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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.