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Finding the Fourth Proportional to 111,473.30, 153,960.92 and 73,403.03

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Solution

The fourth proportional to 111,473.30, 153,960.92 and 73,403.03 is: 101,380.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,473.30 : 153,960.92 = 73,403.03 : x
  2. Step 2: Convert to fraction form
    111,473.30/153,960.92 = 73,403.03/x
  3. Step 3: Cross multiply
    111,473.30x = 153,960.92 × 73,403.03
  4. Step 4: Simplify right side
    111,473.30x = 11,301,196,892.77
  5. Step 5: Solve for x
    x = 11,301,196,892.77/111,473.30
  6. Step 6: Final answer
    x = 101,380.31

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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.