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Finding the Fourth Proportional to 101,996.10, 153,044.28 and 45,875.88

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Solution

The fourth proportional to 101,996.10, 153,044.28 and 45,875.88 is: 68,836.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,996.10 : 153,044.28 = 45,875.88 : x
  2. Step 2: Convert to fraction form
    101,996.10/153,044.28 = 45,875.88/x
  3. Step 3: Cross multiply
    101,996.10x = 153,044.28 × 45,875.88
  4. Step 4: Simplify right side
    101,996.10x = 7,021,041,023.97
  5. Step 5: Solve for x
    x = 7,021,041,023.97/101,996.10
  6. Step 6: Final answer
    x = 68,836.37

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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.