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Finding the Fourth Proportional to 80,081.70, 110,494.42 and 47,810.04

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Solution

The fourth proportional to 80,081.70, 110,494.42 and 47,810.04 is: 65,966.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,081.70 : 110,494.42 = 47,810.04 : x
  2. Step 2: Convert to fraction form
    80,081.70/110,494.42 = 47,810.04/x
  3. Step 3: Cross multiply
    80,081.70x = 110,494.42 × 47,810.04
  4. Step 4: Simplify right side
    80,081.70x = 5,282,742,582.70
  5. Step 5: Solve for x
    x = 5,282,742,582.70/80,081.70
  6. Step 6: Final answer
    x = 65,966.91

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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.