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Finding the Fourth Proportional to 111,799.94, 167,699.91 and 76,632.98

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Solution

The fourth proportional to 111,799.94, 167,699.91 and 76,632.98 is: 114,949.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,799.94 : 167,699.91 = 76,632.98 : x
  2. Step 2: Convert to fraction form
    111,799.94/167,699.91 = 76,632.98/x
  3. Step 3: Cross multiply
    111,799.94x = 167,699.91 × 76,632.98
  4. Step 4: Simplify right side
    111,799.94x = 12,851,343,849.03
  5. Step 5: Solve for x
    x = 12,851,343,849.03/111,799.94
  6. Step 6: Final answer
    x = 114,949.47

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Similar ratio
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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.