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Finding the Fourth Proportional to 85,064.77, 127,511.38 and 53,497.39

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Solution

The fourth proportional to 85,064.77, 127,511.38 and 53,497.39 is: 80,192.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,064.77 : 127,511.38 = 53,497.39 : x
  2. Step 2: Convert to fraction form
    85,064.77/127,511.38 = 53,497.39/x
  3. Step 3: Cross multiply
    85,064.77x = 127,511.38 × 53,497.39
  4. Step 4: Simplify right side
    85,064.77x = 6,821,526,025.30
  5. Step 5: Solve for x
    x = 6,821,526,025.30/85,064.77
  6. Step 6: Final answer
    x = 80,192.14

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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.