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Finding the Fourth Proportional to 60,458.80, 90,515.40 and 53,546.80

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Solution

The fourth proportional to 60,458.80, 90,515.40 and 53,546.80 is: 80,167.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,458.80 : 90,515.40 = 53,546.80 : x
  2. Step 2: Convert to fraction form
    60,458.80/90,515.40 = 53,546.80/x
  3. Step 3: Cross multiply
    60,458.80x = 90,515.40 × 53,546.80
  4. Step 4: Simplify right side
    60,458.80x = 4,846,810,020.72
  5. Step 5: Solve for x
    x = 4,846,810,020.72/60,458.80
  6. Step 6: Final answer
    x = 80,167.16

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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.