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Finding the Fourth Proportional to 76,995.22, 106,216.86 and 48,300.70

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Solution

The fourth proportional to 76,995.22, 106,216.86 and 48,300.70 is: 66,632.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,995.22 : 106,216.86 = 48,300.70 : x
  2. Step 2: Convert to fraction form
    76,995.22/106,216.86 = 48,300.70/x
  3. Step 3: Cross multiply
    76,995.22x = 106,216.86 × 48,300.70
  4. Step 4: Simplify right side
    76,995.22x = 5,130,348,689.80
  5. Step 5: Solve for x
    x = 5,130,348,689.80/76,995.22
  6. Step 6: Final answer
    x = 66,632.04

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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.