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Finding the Fourth Proportional to 70,795.96, 97,628.39 and 64,651.30

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Solution

The fourth proportional to 70,795.96, 97,628.39 and 64,651.30 is: 89,154.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,795.96 : 97,628.39 = 64,651.30 : x
  2. Step 2: Convert to fraction form
    70,795.96/97,628.39 = 64,651.30/x
  3. Step 3: Cross multiply
    70,795.96x = 97,628.39 × 64,651.30
  4. Step 4: Simplify right side
    70,795.96x = 6,311,802,005.52
  5. Step 5: Solve for x
    x = 6,311,802,005.52/70,795.96
  6. Step 6: Final answer
    x = 89,154.84

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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.