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Finding the Fourth Proportional to 70,901.33, 97,842.74 and 39,071.36

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Solution

The fourth proportional to 70,901.33, 97,842.74 and 39,071.36 is: 53,917.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,901.33 : 97,842.74 = 39,071.36 : x
  2. Step 2: Convert to fraction form
    70,901.33/97,842.74 = 39,071.36/x
  3. Step 3: Cross multiply
    70,901.33x = 97,842.74 × 39,071.36
  4. Step 4: Simplify right side
    70,901.33x = 3,822,848,967.18
  5. Step 5: Solve for x
    x = 3,822,848,967.18/70,901.33
  6. Step 6: Final answer
    x = 53,917.88

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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.