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Finding the Fourth Proportional to 69,294.34, 103,226.40 and 64,991.62

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Solution

The fourth proportional to 69,294.34, 103,226.40 and 64,991.62 is: 96,816.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,294.34 : 103,226.40 = 64,991.62 : x
  2. Step 2: Convert to fraction form
    69,294.34/103,226.40 = 64,991.62/x
  3. Step 3: Cross multiply
    69,294.34x = 103,226.40 × 64,991.62
  4. Step 4: Simplify right side
    69,294.34x = 6,708,850,962.77
  5. Step 5: Solve for x
    x = 6,708,850,962.77/69,294.34
  6. Step 6: Final answer
    x = 96,816.72

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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.