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Finding the Fourth Proportional to 57,114.40, 85,695.90 and 36,070.60

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Solution

The fourth proportional to 57,114.40, 85,695.90 and 36,070.60 is: 54,121.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,114.40 : 85,695.90 = 36,070.60 : x
  2. Step 2: Convert to fraction form
    57,114.40/85,695.90 = 36,070.60/x
  3. Step 3: Cross multiply
    57,114.40x = 85,695.90 × 36,070.60
  4. Step 4: Simplify right side
    57,114.40x = 3,091,102,530.54
  5. Step 5: Solve for x
    x = 3,091,102,530.54/57,114.40
  6. Step 6: Final answer
    x = 54,121.25

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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.