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Finding the Fourth Proportional to 56,258.84, 84,234.56 and 40,479.64

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Solution

The fourth proportional to 56,258.84, 84,234.56 and 40,479.64 is: 60,608.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,258.84 : 84,234.56 = 40,479.64 : x
  2. Step 2: Convert to fraction form
    56,258.84/84,234.56 = 40,479.64/x
  3. Step 3: Cross multiply
    56,258.84x = 84,234.56 × 40,479.64
  4. Step 4: Simplify right side
    56,258.84x = 3,409,784,664.36
  5. Step 5: Solve for x
    x = 3,409,784,664.36/56,258.84
  6. Step 6: Final answer
    x = 60,608.87

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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.