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Finding the Fourth Proportional to 73,386, 101,272.68 and 39,852

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Solution

The fourth proportional to 73,386, 101,272.68 and 39,852 is: 54,995.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,386 : 101,272.68 = 39,852 : x
  2. Step 2: Convert to fraction form
    73,386/101,272.68 = 39,852/x
  3. Step 3: Cross multiply
    73,386x = 101,272.68 × 39,852
  4. Step 4: Simplify right side
    73,386x = 4,035,918,843.36
  5. Step 5: Solve for x
    x = 4,035,918,843.36/73,386
  6. Step 6: Final answer
    x = 54,995.76

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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.