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Finding the Fourth Proportional to 79,358.16, 119,059.38 and 64,705.44

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Solution

The fourth proportional to 79,358.16, 119,059.38 and 64,705.44 is: 97,076.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,358.16 : 119,059.38 = 64,705.44 : x
  2. Step 2: Convert to fraction form
    79,358.16/119,059.38 = 64,705.44/x
  3. Step 3: Cross multiply
    79,358.16x = 119,059.38 × 64,705.44
  4. Step 4: Simplify right side
    79,358.16x = 7,703,789,569.03
  5. Step 5: Solve for x
    x = 7,703,789,569.03/79,358.16
  6. Step 6: Final answer
    x = 97,076.21

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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.