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Finding the Fourth Proportional to 57,808.26, 79,751.79 and 45,823.50

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Solution

The fourth proportional to 57,808.26, 79,751.79 and 45,823.50 is: 63,217.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,808.26 : 79,751.79 = 45,823.50 : x
  2. Step 2: Convert to fraction form
    57,808.26/79,751.79 = 45,823.50/x
  3. Step 3: Cross multiply
    57,808.26x = 79,751.79 × 45,823.50
  4. Step 4: Simplify right side
    57,808.26x = 3,654,506,149.07
  5. Step 5: Solve for x
    x = 3,654,506,149.07/57,808.26
  6. Step 6: Final answer
    x = 63,217.72

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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.