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Finding the Fourth Proportional to 65,207.70, 97,811.55 and 50,445.45

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Solution

The fourth proportional to 65,207.70, 97,811.55 and 50,445.45 is: 75,668.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,207.70 : 97,811.55 = 50,445.45 : x
  2. Step 2: Convert to fraction form
    65,207.70/97,811.55 = 50,445.45/x
  3. Step 3: Cross multiply
    65,207.70x = 97,811.55 × 50,445.45
  4. Step 4: Simplify right side
    65,207.70x = 4,934,147,654.95
  5. Step 5: Solve for x
    x = 4,934,147,654.95/65,207.70
  6. Step 6: Final answer
    x = 75,668.18

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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.