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Finding the Fourth Proportional to 57,335.60, 85,830.60 and 51,114.80

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Solution

The fourth proportional to 57,335.60, 85,830.60 and 51,114.80 is: 76,518.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,335.60 : 85,830.60 = 51,114.80 : x
  2. Step 2: Convert to fraction form
    57,335.60/85,830.60 = 51,114.80/x
  3. Step 3: Cross multiply
    57,335.60x = 85,830.60 × 51,114.80
  4. Step 4: Simplify right side
    57,335.60x = 4,387,213,952.88
  5. Step 5: Solve for x
    x = 4,387,213,952.88/57,335.60
  6. Step 6: Final answer
    x = 76,518.15

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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.