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Finding the Fourth Proportional to 69,266.72, 103,900.08 and 55,503.20

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Solution

The fourth proportional to 69,266.72, 103,900.08 and 55,503.20 is: 83,254.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,266.72 : 103,900.08 = 55,503.20 : x
  2. Step 2: Convert to fraction form
    69,266.72/103,900.08 = 55,503.20/x
  3. Step 3: Cross multiply
    69,266.72x = 103,900.08 × 55,503.20
  4. Step 4: Simplify right side
    69,266.72x = 5,766,786,920.26
  5. Step 5: Solve for x
    x = 5,766,786,920.26/69,266.72
  6. Step 6: Final answer
    x = 83,254.80

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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.