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Finding the Fourth Proportional to 56,865.60, 85,363.20 and 33,505.20

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Solution

The fourth proportional to 56,865.60, 85,363.20 and 33,505.20 is: 50,295.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,865.60 : 85,363.20 = 33,505.20 : x
  2. Step 2: Convert to fraction form
    56,865.60/85,363.20 = 33,505.20/x
  3. Step 3: Cross multiply
    56,865.60x = 85,363.20 × 33,505.20
  4. Step 4: Simplify right side
    56,865.60x = 2,860,111,088.64
  5. Step 5: Solve for x
    x = 2,860,111,088.64/56,865.60
  6. Step 6: Final answer
    x = 50,295.98

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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.