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Finding the Fourth Proportional to 70,814.92, 97,513.80 and 69,243.28

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Solution

The fourth proportional to 70,814.92, 97,513.80 and 69,243.28 is: 95,349.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,814.92 : 97,513.80 = 69,243.28 : x
  2. Step 2: Convert to fraction form
    70,814.92/97,513.80 = 69,243.28/x
  3. Step 3: Cross multiply
    70,814.92x = 97,513.80 × 69,243.28
  4. Step 4: Simplify right side
    70,814.92x = 6,752,175,357.26
  5. Step 5: Solve for x
    x = 6,752,175,357.26/70,814.92
  6. Step 6: Final answer
    x = 95,349.61

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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.