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Finding the Fourth Proportional to 86,807.16, 119,794.95 and 49,080.60

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Solution

The fourth proportional to 86,807.16, 119,794.95 and 49,080.60 is: 67,731.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,807.16 : 119,794.95 = 49,080.60 : x
  2. Step 2: Convert to fraction form
    86,807.16/119,794.95 = 49,080.60/x
  3. Step 3: Cross multiply
    86,807.16x = 119,794.95 × 49,080.60
  4. Step 4: Simplify right side
    86,807.16x = 5,879,608,022.97
  5. Step 5: Solve for x
    x = 5,879,608,022.97/86,807.16
  6. Step 6: Final answer
    x = 67,731.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.