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Finding the Fourth Proportional to 65,863.20, 98,794.80 and 52,741.20

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Solution

The fourth proportional to 65,863.20, 98,794.80 and 52,741.20 is: 79,111.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,863.20 : 98,794.80 = 52,741.20 : x
  2. Step 2: Convert to fraction form
    65,863.20/98,794.80 = 52,741.20/x
  3. Step 3: Cross multiply
    65,863.20x = 98,794.80 × 52,741.20
  4. Step 4: Simplify right side
    65,863.20x = 5,210,556,305.76
  5. Step 5: Solve for x
    x = 5,210,556,305.76/65,863.20
  6. Step 6: Final answer
    x = 79,111.80

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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.