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Finding the Fourth Proportional to 111,841.38, 167,698.53 and 76,345.69

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Solution

The fourth proportional to 111,841.38, 167,698.53 and 76,345.69 is: 114,475.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,841.38 : 167,698.53 = 76,345.69 : x
  2. Step 2: Convert to fraction form
    111,841.38/167,698.53 = 76,345.69/x
  3. Step 3: Cross multiply
    111,841.38x = 167,698.53 × 76,345.69
  4. Step 4: Simplify right side
    111,841.38x = 12,803,059,984.84
  5. Step 5: Solve for x
    x = 12,803,059,984.84/111,841.38
  6. Step 6: Final answer
    x = 114,475.16

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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.