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Finding the Fourth Proportional to 134,308.64, 185,342.16 and 73,879.22

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Solution

The fourth proportional to 134,308.64, 185,342.16 and 73,879.22 is: 101,951.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,308.64 : 185,342.16 = 73,879.22 : x
  2. Step 2: Convert to fraction form
    134,308.64/185,342.16 = 73,879.22/x
  3. Step 3: Cross multiply
    134,308.64x = 185,342.16 × 73,879.22
  4. Step 4: Simplify right side
    134,308.64x = 13,692,934,213.92
  5. Step 5: Solve for x
    x = 13,692,934,213.92/134,308.64
  6. Step 6: Final answer
    x = 101,951.25

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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.