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Finding the Fourth Proportional to 79,986, 110,380.68 and 46,454.16

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Solution

The fourth proportional to 79,986, 110,380.68 and 46,454.16 is: 64,106.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,986 : 110,380.68 = 46,454.16 : x
  2. Step 2: Convert to fraction form
    79,986/110,380.68 = 46,454.16/x
  3. Step 3: Cross multiply
    79,986x = 110,380.68 × 46,454.16
  4. Step 4: Simplify right side
    79,986x = 5,127,641,769.63
  5. Step 5: Solve for x
    x = 5,127,641,769.63/79,986
  6. Step 6: Final answer
    x = 64,106.74

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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.