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Finding the Fourth Proportional to 70,231.32, 104,838.03 and 65,028.69

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Solution

The fourth proportional to 70,231.32, 104,838.03 and 65,028.69 is: 97,071.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,231.32 : 104,838.03 = 65,028.69 : x
  2. Step 2: Convert to fraction form
    70,231.32/104,838.03 = 65,028.69/x
  3. Step 3: Cross multiply
    70,231.32x = 104,838.03 × 65,028.69
  4. Step 4: Simplify right side
    70,231.32x = 6,817,479,753.08
  5. Step 5: Solve for x
    x = 6,817,479,753.08/70,231.32
  6. Step 6: Final answer
    x = 97,071.79

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.