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Finding the Fourth Proportional to 61,202.80, 91,609.80 and 43,706.80

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Solution

The fourth proportional to 61,202.80, 91,609.80 and 43,706.80 is: 65,421.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,202.80 : 91,609.80 = 43,706.80 : x
  2. Step 2: Convert to fraction form
    61,202.80/91,609.80 = 43,706.80/x
  3. Step 3: Cross multiply
    61,202.80x = 91,609.80 × 43,706.80
  4. Step 4: Simplify right side
    61,202.80x = 4,003,971,206.64
  5. Step 5: Solve for x
    x = 4,003,971,206.64/61,202.80
  6. Step 6: Final answer
    x = 65,421.37

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1.5x scale

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.