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Finding the Fourth Proportional to 111,762.38, 154,229.06 and 63,373.19

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Solution

The fourth proportional to 111,762.38, 154,229.06 and 63,373.19 is: 87,453.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,762.38 : 154,229.06 = 63,373.19 : x
  2. Step 2: Convert to fraction form
    111,762.38/154,229.06 = 63,373.19/x
  3. Step 3: Cross multiply
    111,762.38x = 154,229.06 × 63,373.19
  4. Step 4: Simplify right side
    111,762.38x = 9,773,986,910.19
  5. Step 5: Solve for x
    x = 9,773,986,910.19/111,762.38
  6. Step 6: Final answer
    x = 87,453.28

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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.