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Finding the Fourth Proportional to 64,740.42, 89,369.46 and 43,532.01

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Solution

The fourth proportional to 64,740.42, 89,369.46 and 43,532.01 is: 60,092.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,740.42 : 89,369.46 = 43,532.01 : x
  2. Step 2: Convert to fraction form
    64,740.42/89,369.46 = 43,532.01/x
  3. Step 3: Cross multiply
    64,740.42x = 89,369.46 × 43,532.01
  4. Step 4: Simplify right side
    64,740.42x = 3,890,432,226.41
  5. Step 5: Solve for x
    x = 3,890,432,226.41/64,740.42
  6. Step 6: Final answer
    x = 60,092.79

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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.