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Finding the Fourth Proportional to 86,803.98, 119,786.22 and 49,079.04

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Solution

The fourth proportional to 86,803.98, 119,786.22 and 49,079.04 is: 67,727.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,803.98 : 119,786.22 = 49,079.04 : x
  2. Step 2: Convert to fraction form
    86,803.98/119,786.22 = 49,079.04/x
  3. Step 3: Cross multiply
    86,803.98x = 119,786.22 × 49,079.04
  4. Step 4: Simplify right side
    86,803.98x = 5,878,992,682.83
  5. Step 5: Solve for x
    x = 5,878,992,682.83/86,803.98
  6. Step 6: Final answer
    x = 67,727.22

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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.