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Finding the Fourth Proportional to 71,027.40, 106,541.10 and 57,030.60

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Solution

The fourth proportional to 71,027.40, 106,541.10 and 57,030.60 is: 85,545.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,027.40 : 106,541.10 = 57,030.60 : x
  2. Step 2: Convert to fraction form
    71,027.40/106,541.10 = 57,030.60/x
  3. Step 3: Cross multiply
    71,027.40x = 106,541.10 × 57,030.60
  4. Step 4: Simplify right side
    71,027.40x = 6,076,102,857.66
  5. Step 5: Solve for x
    x = 6,076,102,857.66/71,027.40
  6. Step 6: Final answer
    x = 85,545.90

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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.