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Finding the Fourth Proportional to 301,265.52, 451,901.76 and 90,905.28

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Solution

The fourth proportional to 301,265.52, 451,901.76 and 90,905.28 is: 136,358.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,265.52 : 451,901.76 = 90,905.28 : x
  2. Step 2: Convert to fraction form
    301,265.52/451,901.76 = 90,905.28/x
  3. Step 3: Cross multiply
    301,265.52x = 451,901.76 × 90,905.28
  4. Step 4: Simplify right side
    301,265.52x = 41,080,256,025.29
  5. Step 5: Solve for x
    x = 41,080,256,025.29/301,265.52
  6. Step 6: Final answer
    x = 136,358.97

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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.