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Finding the Fourth Proportional to 111,995.46, 167,904.36 and 55,804.95

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Solution

The fourth proportional to 111,995.46, 167,904.36 and 55,804.95 is: 83,663.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,995.46 : 167,904.36 = 55,804.95 : x
  2. Step 2: Convert to fraction form
    111,995.46/167,904.36 = 55,804.95/x
  3. Step 3: Cross multiply
    111,995.46x = 167,904.36 × 55,804.95
  4. Step 4: Simplify right side
    111,995.46x = 9,369,894,414.58
  5. Step 5: Solve for x
    x = 9,369,894,414.58/111,995.46
  6. Step 6: Final answer
    x = 83,663.16

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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.