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Finding the Fourth Proportional to 111,955.60, 167,929.80 and 37,079.20

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Solution

The fourth proportional to 111,955.60, 167,929.80 and 37,079.20 is: 55,617.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,955.60 : 167,929.80 = 37,079.20 : x
  2. Step 2: Convert to fraction form
    111,955.60/167,929.80 = 37,079.20/x
  3. Step 3: Cross multiply
    111,955.60x = 167,929.80 × 37,079.20
  4. Step 4: Simplify right side
    111,955.60x = 6,226,702,640.16
  5. Step 5: Solve for x
    x = 6,226,702,640.16/111,955.60
  6. Step 6: Final answer
    x = 55,617.61

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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.