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Finding the Fourth Proportional to 69,293.34, 103,224.92 and 64,990.62

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Solution

The fourth proportional to 69,293.34, 103,224.92 and 64,990.62 is: 96,815.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,293.34 : 103,224.92 = 64,990.62 : x
  2. Step 2: Convert to fraction form
    69,293.34/103,224.92 = 64,990.62/x
  3. Step 3: Cross multiply
    69,293.34x = 103,224.92 × 64,990.62
  4. Step 4: Simplify right side
    69,293.34x = 6,708,651,225.30
  5. Step 5: Solve for x
    x = 6,708,651,225.30/69,293.34
  6. Step 6: Final answer
    x = 96,815.24

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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.