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Finding the Fourth Proportional to 52,578.64, 78,848.60 and 41,355.88

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Solution

The fourth proportional to 52,578.64, 78,848.60 and 41,355.88 is: 62,018.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,578.64 : 78,848.60 = 41,355.88 : x
  2. Step 2: Convert to fraction form
    52,578.64/78,848.60 = 41,355.88/x
  3. Step 3: Cross multiply
    52,578.64x = 78,848.60 × 41,355.88
  4. Step 4: Simplify right side
    52,578.64x = 3,260,853,239.77
  5. Step 5: Solve for x
    x = 3,260,853,239.77/52,578.64
  6. Step 6: Final answer
    x = 62,018.59

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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.