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Finding the Fourth Proportional to 101,353.56, 139,855.80 and 56,025.44

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Solution

The fourth proportional to 101,353.56, 139,855.80 and 56,025.44 is: 77,308.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,353.56 : 139,855.80 = 56,025.44 : x
  2. Step 2: Convert to fraction form
    101,353.56/139,855.80 = 56,025.44/x
  3. Step 3: Cross multiply
    101,353.56x = 139,855.80 × 56,025.44
  4. Step 4: Simplify right side
    101,353.56x = 7,835,482,731.55
  5. Step 5: Solve for x
    x = 7,835,482,731.55/101,353.56
  6. Step 6: Final answer
    x = 77,308.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.