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Finding the Fourth Proportional to 73,898.51, 101,996.56 and 48,390.06

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Solution

The fourth proportional to 73,898.51, 101,996.56 and 48,390.06 is: 66,789.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,898.51 : 101,996.56 = 48,390.06 : x
  2. Step 2: Convert to fraction form
    73,898.51/101,996.56 = 48,390.06/x
  3. Step 3: Cross multiply
    73,898.51x = 101,996.56 × 48,390.06
  4. Step 4: Simplify right side
    73,898.51x = 4,935,619,542.11
  5. Step 5: Solve for x
    x = 4,935,619,542.11/73,898.51
  6. Step 6: Final answer
    x = 66,789.16

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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.