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Finding the Fourth Proportional to 85,063.77, 127,509.88 and 53,496.39

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Solution

The fourth proportional to 85,063.77, 127,509.88 and 53,496.39 is: 80,190.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,063.77 : 127,509.88 = 53,496.39 : x
  2. Step 2: Convert to fraction form
    85,063.77/127,509.88 = 53,496.39/x
  3. Step 3: Cross multiply
    85,063.77x = 127,509.88 × 53,496.39
  4. Step 4: Simplify right side
    85,063.77x = 6,821,318,269.33
  5. Step 5: Solve for x
    x = 6,821,318,269.33/85,063.77
  6. Step 6: Final answer
    x = 80,190.64

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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.