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Finding the Fourth Proportional to 70,001.10, 104,739.21 and 38,858.22

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Solution

The fourth proportional to 70,001.10, 104,739.21 and 38,858.22 is: 58,141.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,001.10 : 104,739.21 = 38,858.22 : x
  2. Step 2: Convert to fraction form
    70,001.10/104,739.21 = 38,858.22/x
  3. Step 3: Cross multiply
    70,001.10x = 104,739.21 × 38,858.22
  4. Step 4: Simplify right side
    70,001.10x = 4,069,979,264.81
  5. Step 5: Solve for x
    x = 4,069,979,264.81/70,001.10
  6. Step 6: Final answer
    x = 58,141.65

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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.