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Finding the Fourth Proportional to 70,109.93, 96,724.03 and 43,205.58

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Solution

The fourth proportional to 70,109.93, 96,724.03 and 43,205.58 is: 59,606.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,109.93 : 96,724.03 = 43,205.58 : x
  2. Step 2: Convert to fraction form
    70,109.93/96,724.03 = 43,205.58/x
  3. Step 3: Cross multiply
    70,109.93x = 96,724.03 × 43,205.58
  4. Step 4: Simplify right side
    70,109.93x = 4,179,017,816.09
  5. Step 5: Solve for x
    x = 4,179,017,816.09/70,109.93
  6. Step 6: Final answer
    x = 59,606.65

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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.